diff --git a/src/components/CreateTicketModal.jsx b/src/components/CreateTicketModal.jsx
index b093183..a203888 100644
--- a/src/components/CreateTicketModal.jsx
+++ b/src/components/CreateTicketModal.jsx
@@ -5,7 +5,7 @@ import { useEmployees } from '../hooks/useEmployees'
 
 // Fallback-Werte falls Config nicht geladen werden kann
 const DEFAULT_TICKET_TYPES = [
-  'Home Office', 'Holidays', 'Trip', 'Supportrequest', 'Change Request',
+  'Akquise', 'Home Office', 'Holidays', 'Trip', 'Supportrequest', 'Change Request',
   'Maintenance', 'Project', 'Webpage', 'Controlling', 'Development', 'Documentation',
   'Meeting/Conference', 'IT Management', 'IT Security', 'Procurement',
   'Rollout', 'Emergency Call', 'Other Services'
diff --git a/src/components/CreateWorksheetModal.jsx b/src/components/CreateWorksheetModal.jsx
index 49ac32d..d5f5828 100644
--- a/src/components/CreateWorksheetModal.jsx
+++ b/src/components/CreateWorksheetModal.jsx
@@ -30,6 +30,9 @@ const RESPONSE_LEVELS = [
   'n/a'
 ]
 
+// Akquise-Tickets: Ergebnis des Kundenkontakts (statt technischer Status)
+const ACQUISITION_STATUS = ['In Kontakt', 'Zugesagt', 'Abgesagt']
+
 export default function CreateWorksheetModal({ isOpen, onClose, workorder, onCreate }) {
   const { user } = useAuth()
   const today = new Date().toLocaleDateString('de-DE', { 
@@ -55,12 +58,18 @@ export default function CreateWorksheetModal({ isOpen, onClose, workorder, onCre
   const [error, setError] = useState('')
   const [autoCalculate, setAutoCalculate] = useState(true)
 
+  const isAcquisition = workorder?.type === 'Akquise'
+  const statusOptions = isAcquisition ? ACQUISITION_STATUS : STATUS_OPTIONS
+  const defaultStatus = isAcquisition
+    ? (ACQUISITION_STATUS.includes(workorder?.status) ? workorder.status : 'In Kontakt')
+    : (workorder?.status || 'Open')
+
   // Reset form wenn Modal geöffnet wird
   useEffect(() => {
     if (isOpen && workorder) {
       setFormData({
         serviceType: 'Remote',
-        newStatus: workorder.status || 'Open',
+        newStatus: defaultStatus,
         newResponseLevel: workorder.responseLevel || '',
         totalTime: 0,
         startDate: today,
@@ -189,17 +198,22 @@ export default function CreateWorksheetModal({ isOpen, onClose, workorder, onCre
               </div>
 
               <div className="form-group">
-                <label className="form-label">New Status</label>
+                <label className="form-label">{isAcquisition ? 'Akquise-Ergebnis' : 'New Status'}</label>
                 <select
                   className="form-control"
                   value={formData.newStatus}
                   onChange={(e) => handleChange('newStatus', e.target.value)}
                   required
                 >
-                  {STATUS_OPTIONS.map(status => (
+                  {statusOptions.map(status => (
                     <option key={status} value={status}>{status}</option>
                   ))}
                 </select>
+                {isAcquisition && (
+                  <small style={{ color: '#a0aec0', fontSize: '12px' }}>
+                    "Zugesagt" macht den Lead automatisch zum festen Kunden.
+                  </small>
+                )}
               </div>
 
               <div className="form-group">
diff --git a/src/components/InvoicePanel.jsx b/src/components/InvoicePanel.jsx
index 7c4ea8b..bd2f6f1 100644
--- a/src/components/InvoicePanel.jsx
+++ b/src/components/InvoicePanel.jsx
@@ -3,6 +3,7 @@ import { FaFilePdf, FaPlus, FaLink, FaSpinner, FaRotate } from 'react-icons/fa6'
 import { databases, DATABASE_ID, COLLECTIONS } from '../lib/appwrite'
 import { integrationsApi, formatMoney, INVOICE_STATUS } from '../lib/integrationsApi'
 import { useInvoices } from '../hooks/useInvoices'
+import { customerStage, isInvoiceReady } from '../lib/leads'
 
 const card = {
   background: 'rgba(45, 55, 72, 0.5)',
@@ -74,7 +75,15 @@ export default function InvoicePanel({ ticket }) {
 
       {customerError && <div className="text-red" style={{ marginBottom: 8 }}>{customerError}</div>}
 
-      {!clientId ? (
+      {customer && customerStage(customer) === 'lead' ? (
+        <p style={{ color: '#a0aec0', margin: 0 }}>
+          Dieser Kunde ist noch ein Lead. Erst zum festen Kunden machen (im Kunden-Bereich, vollstaendige Daten noetig) - dann sind Rechnungen moeglich.
+        </p>
+      ) : !clientId && !isInvoiceReady(customer) ? (
+        <p style={{ color: '#a0aec0', margin: 0 }}>
+          Rechnungsdaten unvollstaendig. Bitte im Kunden-Bereich Unternehmen, E-Mail, Strasse, PLZ und Stadt ergaenzen.
+        </p>
+      ) : !clientId ? (
         <LinkClient customer={customer} onLinked={loadCustomer} />
       ) : (
         <InvoiceList
@@ -177,7 +186,7 @@ function LinkClient({ customer, onLinked }) {
           <div key={c.id} style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center', padding: '8px', borderBottom: '1px solid rgba(255,255,255,0.06)' }}>
             <div>
               <strong style={{ color: 'var(--dark-text)' }}>{c.name}</strong>
-              {c.number ? <span style={{ color: '#a0aec0' }}> � {c.number}</span> : null}
+              {c.number ? <span style={{ color: '#a0aec0' }}> � {c.number}</span> : null}
               {c.email ? <div style={{ color: '#a0aec0', fontSize: '12px' }}>{c.email}</div> : null}
             </div>
             <button className="btn btn-green" style={{ margin: 0 }} disabled={saving} onClick={() => saveMapping(c.id)}>
@@ -248,7 +257,7 @@ function InvoiceList({ ticket, clientId, invoices, loading, error, createInvoice
             </thead>
             <tbody>
               {invoices.map((inv) => {
-                const st = INVOICE_STATUS[inv.status_id] || { label: '�', color: '#a0aec0' }
+                const st = INVOICE_STATUS[inv.status_id] || { label: '�', color: '#a0aec0' }
                 const overdue = Number(inv.balance) > 0 && inv.due_date && new Date(inv.due_date) < new Date()
                 return (
                   <tr key={inv.id}>
diff --git a/src/components/TicketCard.jsx b/src/components/TicketCard.jsx
index 31eee58..4926fa7 100644
--- a/src/components/TicketCard.jsx
+++ b/src/components/TicketCard.jsx
@@ -18,6 +18,7 @@ import Tabs from './ui/Tabs'
 import Badge from './ui/Badge'
 import { StatusPill, PriorityPill } from './ui/StatusPill'
 import { useWorksheets } from '../hooks/useWorksheets'
+import { databases, DATABASE_ID, COLLECTIONS } from '../lib/appwrite'
 
 const TABS = [
   { id: 'details', label: 'Details' },
@@ -52,6 +53,19 @@ export default function TicketCard({ ticket, onUpdate }) {
         responseLevel: worksheetData.newResponseLevel || ticket.responseLevel,
       })
     }
+    // Akquise-Automatik: Ergebnis im Worksheet steuert den Kundenstatus
+    if (result.success && ticket.type === 'Akquise' && ticket.customerId) {
+      const outcome = worksheetData.newStatus
+      const next = outcome === 'Zugesagt' ? 'customer' : outcome === 'Abgesagt' ? 'lost' : null
+      if (next) {
+        try {
+          await databases.updateDocument(DATABASE_ID, COLLECTIONS.CUSTOMERS, ticket.customerId, {
+            customerStatus: next,
+            updatedAt: new Date().toISOString(),
+          })
+        } catch { /* nicht kritisch */ }
+      }
+    }
     return result
   }
 
diff --git a/src/lib/integrationsApi.js b/src/lib/integrationsApi.js
index 2192de7..cc143e9 100644
--- a/src/lib/integrationsApi.js
+++ b/src/lib/integrationsApi.js
@@ -54,6 +54,7 @@ export const integrationsApi = {
   // ---- InvoiceNinja: clients ----
   listClients: (search = '') => call(`/clients${qs({ search })}`),
   createClient: (payload) => call('/clients', { method: 'POST', body: payload }),
+  updateClient: (id, payload) => call(`/clients/${encodeURIComponent(id)}`, { method: 'PUT', body: payload }),
 
   // ---- InvoiceNinja: invoices ----
   listInvoices: (clientId, perPage) => call(`/invoices${qs({ clientId, per_page: perPage })}`),
diff --git a/src/lib/leads.js b/src/lib/leads.js
new file mode 100644
index 0000000..7007f50
--- /dev/null
+++ b/src/lib/leads.js
@@ -0,0 +1,119 @@
+import { databases, DATABASE_ID, COLLECTIONS, Query, ID } from './appwrite'
+import { integrationsApi } from './integrationsApi'
+
+/** Pflichtfelder, damit eine Rechnung erstellt werden kann (wie InvoiceNinja). */
+export function isInvoiceReady(c) {
+  return Boolean(c && c.name && c.email && c.street && c.city && c.postalCode)
+}
+
+export function customerStage(c) {
+  const s = (c?.customerStatus || '').toLowerCase()
+  if (s === 'lead') return 'lead'
+  if (s === 'lost') return 'lost'
+  return 'customer' // Bestandsdaten ohne Status gelten als fester Kunde
+}
+
+function ninjaPayload(c) {
+  return {
+    name: c.companyName || c.name,
+    email: c.email || '',
+    phone: c.phone || '',
+    street: c.street || '',
+    city: c.city || '',
+    postalCode: c.postalCode || '',
+    country: c.country || '',
+    vatNumber: c.vatNumber || '',
+    contactName: c.contactName || '',
+  }
+}
+
+/** Erstellt/aktualisiert den InvoiceNinja-Client und speichert die ID am Kunden. */
+export async function syncCustomerToNinja(customer) {
+  if (customer.invoiceNinjaClientId) {
+    await integrationsApi.updateClient(customer.invoiceNinjaClientId, ninjaPayload(customer))
+    return customer.invoiceNinjaClientId
+  }
+  const r = await integrationsApi.createClient(ninjaPayload(customer))
+  const id = r.client?.id
+  if (id) {
+    await databases.updateDocument(DATABASE_ID, COLLECTIONS.CUSTOMERS, customer.$id, {
+      invoiceNinjaClientId: id,
+    })
+  }
+  return id
+}
+
+async function nextWoid() {
+  try {
+    const res = await databases.listDocuments(DATABASE_ID, COLLECTIONS.WORKORDERS, [
+      Query.orderDesc('$createdAt'),
+      Query.limit(200),
+    ])
+    const nums = res.documents.map((d) => parseInt(d.woid)).filter((n) => !isNaN(n) && n > 0)
+    return String((nums.length ? Math.max(...nums) : 9999) + 1)
+  } catch {
+    return String(10000)
+  }
+}
+
+/** Auto-Akquise-Ticket fuer einen potenziellen Kunden. */
+export async function createAcquisitionTicket(customer, user) {
+  const woid = await nextWoid()
+  const data = {
+    topic: `Akquise: ${customer.name}`,
+    status: 'Open',
+    priority: 2,
+    woid,
+    type: 'Akquise',
+    systemType: 'n/a',
+    serviceType: 'Remote',
+    customerId: customer.$id,
+    customerName: customer.name,
+    customerLocation: customer.location || '',
+    requestedBy: customer.email || '',
+    assignedTo: user?.$id || '',
+    details:
+      `Automatisch erstelltes Akquise-Ticket fuer den potenziellen Kunden "${customer.name}".\n` +
+      `Kontakt: ${customer.email || '-'}\n\n` +
+      `Worksheets dokumentieren den Kontaktverlauf (sichtbar in den WSIDs).\n` +
+      `Ergebnis im Worksheet auf "Zugesagt" -> Lead wird automatisch fester Kunde. "Abgesagt" -> Ticket geschlossen.`,
+    createdAt: new Date().toISOString(),
+  }
+  return databases.createDocument(DATABASE_ID, COLLECTIONS.WORKORDERS, ID.unique(), data)
+}
+
+/** Legt einen Lead an (nur Unternehmen + E-Mail) und erstellt das Akquise-Ticket. */
+export async function createLead({ company, email }, user) {
+  const now = new Date().toISOString()
+  const customer = await databases.createDocument(DATABASE_ID, COLLECTIONS.CUSTOMERS, ID.unique(), {
+    name: company,
+    companyName: company,
+    email: email || '',
+    customerStatus: 'lead',
+    createdAt: now,
+    updatedAt: now,
+  })
+  let ticket = null
+  try {
+    ticket = await createAcquisitionTicket(customer, user)
+  } catch {
+    /* Ticket ist optional - Lead bleibt bestehen */
+  }
+  return { customer, ticket }
+}
+
+/** Macht aus einem Lead einen festen Kunden (mit vollstaendigen Daten) und legt den InvoiceNinja-Client an. */
+export async function upgradeToCustomer(customer, fullData) {
+  const updated = await databases.updateDocument(DATABASE_ID, COLLECTIONS.CUSTOMERS, customer.$id, {
+    ...fullData,
+    customerStatus: 'customer',
+    updatedAt: new Date().toISOString(),
+  })
+  let clientId = updated.invoiceNinjaClientId
+  try {
+    clientId = await syncCustomerToNinja(updated)
+  } catch (e) {
+    return { customer: updated, clientId: null, syncError: e.message }
+  }
+  return { customer: { ...updated, invoiceNinjaClientId: clientId }, clientId }
+}
diff --git a/src/pages/CustomerDetailPage.jsx b/src/pages/CustomerDetailPage.jsx
index e6e25d7..cceae01 100644
--- a/src/pages/CustomerDetailPage.jsx
+++ b/src/pages/CustomerDetailPage.jsx
@@ -1,6 +1,6 @@
 import { useState, useEffect, useCallback } from 'react'
 import { useParams, Link } from 'react-router-dom'
-import { FaSpinner, FaStar, FaArrowLeft, FaFloppyDisk } from 'react-icons/fa6'
+import { FaSpinner, FaStar, FaArrowLeft, FaFloppyDisk, FaArrowUp } from 'react-icons/fa6'
 import { databases, DATABASE_ID, COLLECTIONS, Query } from '../lib/appwrite'
 import { PageHeader, Card, Button, Badge, Tabs, EmptyState, Field } from '../components/ui'
 import { StatusPill, PriorityPill } from '../components/ui/StatusPill'
@@ -8,6 +8,7 @@ import InvoicePanel from '../components/InvoicePanel'
 import DocumentsPanel from '../components/DocumentsPanel'
 import AssignedProjectCard from '../components/AssignedProjectCard'
 import { useWebsiteProjects } from '../hooks/useWebsiteProjects'
+import { customerStage, isInvoiceReady, upgradeToCustomer, syncCustomerToNinja } from '../lib/leads'
 
 const TABS = [
   { id: 'overview', label: 'Uebersicht' },
@@ -41,6 +42,7 @@ export default function CustomerDetailPage() {
   if (loading) return <div className="page"><div className="empty"><FaSpinner className="spinner" /></div></div>
   if (error || !customer) return <div className="page"><EmptyState title="Kunde nicht gefunden" hint={error} action={<Button as={Link} to="/customers"><FaArrowLeft /> Zurueck</Button>} /></div>
 
+  const stage = customerStage(customer)
   const syntheticTicket = { customerId: customer.$id, customerName: customer.name, woid: '' }
 
   return (
@@ -50,30 +52,48 @@ export default function CustomerDetailPage() {
           <span style={{ display: 'inline-flex', alignItems: 'center', gap: 10 }}>
             {customer.importantCustomer && <FaStar style={{ color: 'var(--warn)' }} />}
             {customer.name}
+            {stage === 'lead' && <Badge tone="warn" dot>Lead</Badge>}
+            {stage === 'customer' && <Badge tone="ok" dot>Fester Kunde</Badge>}
+            {stage === 'lost' && <Badge tone="muted">Abgesagt</Badge>}
           </span>
         }
-        subtitle={[customer.location, customer.email, customer.phone].filter(Boolean).join(' � ')}
+        subtitle={[customer.location, customer.email, customer.phone].filter(Boolean).join(' � ')}
         actions={<Button variant="ghost" as={Link} to="/customers"><FaArrowLeft /> Alle Kunden</Button>}
       />
 
       <Tabs tabs={TABS} active={tab} onChange={setTab} />
 
-      {tab === 'overview' && <OverviewTab customer={customer} onSaved={load} />}
+      {tab === 'overview' && <OverviewTab customer={customer} stage={stage} onSaved={load} />}
       {tab === 'tickets' && <CustomerTickets customerId={customer.$id} />}
-      {tab === 'invoices' && <InvoicePanel ticket={syntheticTicket} />}
+      {tab === 'invoices' && (
+        stage === 'lead' ? (
+          <Card><EmptyState title="Noch ein Lead" hint="Erst zum festen Kunden machen (vollstaendige Daten noetig), dann sind Rechnungen moeglich." action={<Button variant="primary" onClick={() => setTab('overview')}>Daten erfassen</Button>} /></Card>
+        ) : !isInvoiceReady(customer) ? (
+          <Card><EmptyState title="Daten unvollstaendig" hint="Fuer Rechnungen werden Unternehmen, E-Mail, Strasse, Stadt und PLZ benoetigt." action={<Button variant="primary" onClick={() => setTab('overview')}>Daten vervollstaendigen</Button>} /></Card>
+        ) : (
+          <InvoicePanel ticket={syntheticTicket} />
+        )
+      )}
       {tab === 'documents' && <DocumentsPanel ticket={syntheticTicket} initialScope="customer" />}
       {tab === 'projects' && <CustomerProjects customerId={customer.$id} />}
     </div>
   )
 }
 
-function OverviewTab({ customer, onSaved }) {
+function OverviewTab({ customer, stage, onSaved }) {
   const [form, setForm] = useState({
     name: customer.name || '',
+    companyName: customer.companyName || customer.name || '',
     code: customer.code || '',
-    location: customer.location || '',
     email: customer.email || '',
     phone: customer.phone || '',
+    contactName: customer.contactName || '',
+    street: customer.street || '',
+    postalCode: customer.postalCode || '',
+    city: customer.city || '',
+    country: customer.country || 'Deutschland',
+    vatNumber: customer.vatNumber || '',
+    location: customer.location || '',
     notes: customer.notes || '',
     importantCustomer: !!customer.importantCustomer,
     paperlessCorrespondent: customer.paperlessCorrespondent || '',
@@ -81,56 +101,76 @@ function OverviewTab({ customer, onSaved }) {
   const [busy, setBusy] = useState(false)
   const [msg, setMsg] = useState(null)
 
+  const ready = isInvoiceReady({ ...customer, ...form })
+
   const save = async () => {
     setBusy(true); setMsg(null)
     try {
-      await databases.updateDocument(DATABASE_ID, COLLECTIONS.CUSTOMERS, customer.$id, form)
-      setMsg('Gespeichert')
+      const updated = await databases.updateDocument(DATABASE_ID, COLLECTIONS.CUSTOMERS, customer.$id, form)
+      let note = 'Gespeichert'
+      // Wenn fester Kunde: Aenderungen nach InvoiceNinja syncen (sofern Daten reichen oder bereits verknuepft)
+      if (stage === 'customer' && (updated.invoiceNinjaClientId || isInvoiceReady(updated))) {
+        try { await syncCustomerToNinja(updated) } catch (e) { note = 'Gespeichert, InvoiceNinja-Sync fehlgeschlagen: ' + e.message }
+      }
+      setMsg(note)
       onSaved()
     } catch (err) {
       setMsg('Fehler: ' + err.message)
     } finally { setBusy(false) }
   }
 
+  const upgrade = async () => {
+    if (!ready) { setMsg('Bitte zuerst alle Pflichtfelder (Unternehmen, E-Mail, Strasse, PLZ, Stadt) ausfuellen.'); return }
+    setBusy(true); setMsg(null)
+    const r = await upgradeToCustomer(customer, form)
+    if (r.clientId) setMsg('Zum festen Kunden gemacht und mit InvoiceNinja verknuepft.')
+    else setMsg('Status gesetzt, aber InvoiceNinja-Verknuepfung fehlgeschlagen: ' + (r.syncError || 'unbekannt'))
+    setBusy(false)
+    onSaved()
+  }
+
   return (
-    <div style={{ display: 'grid', gridTemplateColumns: 'repeat(auto-fit, minmax(280px, 1fr))', gap: 16 }}>
+    <div style={{ display: 'grid', gridTemplateColumns: 'repeat(auto-fit, minmax(300px, 1fr))', gap: 16 }}>
       <Card title="Stammdaten">
         <div className="flex gap-3 wrap">
-          <Field label="Name"><input className="form-control" value={form.name} onChange={(e) => setForm({ ...form, name: e.target.value })} /></Field>
+          <Field label="Unternehmen / Name"><input className="form-control" value={form.name} onChange={(e) => setForm({ ...form, name: e.target.value, companyName: e.target.value })} /></Field>
           <Field label="Code"><input className="form-control" value={form.code} onChange={(e) => setForm({ ...form, code: e.target.value })} /></Field>
         </div>
-        <Field label="Ort"><input className="form-control" value={form.location} onChange={(e) => setForm({ ...form, location: e.target.value })} /></Field>
         <div className="flex gap-3 wrap">
-          <Field label="E-Mail"><input className="form-control" value={form.email} onChange={(e) => setForm({ ...form, email: e.target.value })} /></Field>
+          <Field label="E-Mail"><input className="form-control" type="email" value={form.email} onChange={(e) => setForm({ ...form, email: e.target.value })} /></Field>
           <Field label="Telefon"><input className="form-control" value={form.phone} onChange={(e) => setForm({ ...form, phone: e.target.value })} /></Field>
         </div>
+        <Field label="Ansprechpartner"><input className="form-control" value={form.contactName} onChange={(e) => setForm({ ...form, contactName: e.target.value })} /></Field>
         <Field label="Notizen"><textarea className="form-control" rows={3} value={form.notes} onChange={(e) => setForm({ ...form, notes: e.target.value })} /></Field>
         <label className="flex items-center gap-2" style={{ marginBottom: 12, cursor: 'pointer' }}>
           <input type="checkbox" checked={form.importantCustomer} onChange={(e) => setForm({ ...form, importantCustomer: e.target.checked })} />
           Wichtiger Kunde
         </label>
-        <div className="flex gap-2 items-center">
+        <div className="flex gap-2 items-center wrap">
           <Button variant="primary" onClick={save} disabled={busy}>{busy ? <FaSpinner className="spinner" /> : <><FaFloppyDisk /> Speichern</>}</Button>
+          {stage === 'lead' && <Button onClick={upgrade} disabled={busy}><FaArrowUp /> Zum festen Kunden machen</Button>}
           {msg && <span className="muted">{msg}</span>}
         </div>
       </Card>
 
-      <Card title="Verknuepfungen">
-        <div className="flex flex-col gap-3">
-          <div className="flex items-center justify-between">
-            <span className="muted">InvoiceNinja</span>
-            {customer.invoiceNinjaClientId
-              ? <Badge tone="ok" dot>verknuepft</Badge>
-              : <Badge tone="muted">nicht verknuepft</Badge>}
-          </div>
-          <div className="faint" style={{ fontSize: 12 }}>
-            Verknuepfung erfolgt im Tab &quot;Rechnungen&quot; (Kunde suchen oder neu anlegen).
-          </div>
-          <Field label="Paperless-Korrespondent">
-            <input className="form-control" value={form.paperlessCorrespondent} onChange={(e) => setForm({ ...form, paperlessCorrespondent: e.target.value })} placeholder={customer.name} />
-          </Field>
-          <div className="faint" style={{ fontSize: 12 }}>Leer = Kundenname wird als Korrespondent verwendet.</div>
+      <Card title="Rechnungsdaten (fuer InvoiceNinja)">
+        {!ready && <div className="badge badge-warn" style={{ marginBottom: 12 }}>Unvollstaendig - fuer Rechnungen erforderlich</div>}
+        <Field label="Strasse + Nr."><input className="form-control" value={form.street} onChange={(e) => setForm({ ...form, street: e.target.value })} /></Field>
+        <div className="flex gap-3 wrap">
+          <Field label="PLZ"><input className="form-control" value={form.postalCode} onChange={(e) => setForm({ ...form, postalCode: e.target.value })} /></Field>
+          <Field label="Stadt"><input className="form-control" value={form.city} onChange={(e) => setForm({ ...form, city: e.target.value })} /></Field>
         </div>
+        <div className="flex gap-3 wrap">
+          <Field label="Land"><input className="form-control" value={form.country} onChange={(e) => setForm({ ...form, country: e.target.value })} /></Field>
+          <Field label="USt-IdNr."><input className="form-control" value={form.vatNumber} onChange={(e) => setForm({ ...form, vatNumber: e.target.value })} /></Field>
+        </div>
+        <div className="flex items-center justify-between" style={{ marginTop: 8 }}>
+          <span className="muted">InvoiceNinja</span>
+          {customer.invoiceNinjaClientId ? <Badge tone="ok" dot>verknuepft</Badge> : <Badge tone="muted">nicht verknuepft</Badge>}
+        </div>
+        <Field label="Paperless-Korrespondent" hint="Leer = Kundenname wird verwendet">
+          <input className="form-control" value={form.paperlessCorrespondent} onChange={(e) => setForm({ ...form, paperlessCorrespondent: e.target.value })} placeholder={customer.name} />
+        </Field>
       </Card>
     </div>
   )
@@ -171,7 +211,7 @@ function CustomerTickets({ customerId }) {
             <span className="mono" style={{ color: 'var(--accent)', minWidth: 60 }}>{t.woid || t.$id.slice(-5)}</span>
             <div className="grow">
               <div style={{ fontWeight: 600 }}>{t.topic || t.title || '-'}</div>
-              <div className="muted">{t.type} � {t.systemType || 'n/a'}</div>
+              <div className="muted">{t.type} � {t.systemType || 'n/a'}</div>
             </div>
             <PriorityPill priority={t.priority} />
             <StatusPill status={t.status} />
diff --git a/src/pages/CustomersPage.jsx b/src/pages/CustomersPage.jsx
index d3cba96..af56ce2 100644
--- a/src/pages/CustomersPage.jsx
+++ b/src/pages/CustomersPage.jsx
@@ -2,39 +2,48 @@ import { useState, useMemo } from 'react'
 import { Link } from 'react-router-dom'
 import { FaSpinner, FaPlus, FaStar, FaFileInvoiceDollar, FaFileLines } from 'react-icons/fa6'
 import { useCustomers } from '../hooks/useCustomers'
+import { useAuth } from '../context/AuthContext'
+import { createLead, customerStage } from '../lib/leads'
 import { PageHeader, Card, Button, Badge, EmptyState, Field } from '../components/ui'
 
 export default function CustomersPage() {
-  const { customers, loading, createCustomer, refresh } = useCustomers()
+  const { customers, loading, refresh } = useCustomers()
+  const { user } = useAuth()
   const [search, setSearch] = useState('')
-  const [onlyImportant, setOnlyImportant] = useState(false)
+  const [stage, setStage] = useState('all') // all | lead | customer
   const [showCreate, setShowCreate] = useState(false)
 
   const filtered = useMemo(() => {
     return (customers || [])
-      .filter((c) => (onlyImportant ? c.importantCustomer : true))
+      .filter((c) => {
+        const st = customerStage(c)
+        if (st === 'lost') return stage === 'all'
+        if (stage === 'all') return true
+        return st === stage
+      })
       .filter((c) => {
         if (!search) return true
         const s = search.toLowerCase()
         return `${c.name} ${c.code || ''} ${c.location || ''} ${c.email || ''}`.toLowerCase().includes(s)
       })
-  }, [customers, search, onlyImportant])
+  }, [customers, search, stage])
 
   return (
     <div className="page">
       <PageHeader
         title="Kunden"
-        subtitle="Stammdaten, Verknuepfungen und 360-Grad-Sicht je Kunde"
-        actions={<Button variant="primary" onClick={() => setShowCreate((s) => !s)}><FaPlus /> Neuer Kunde</Button>}
+        subtitle="Potenzielle Kunden (Leads) und feste Kunden - eine Pflege, Sync mit InvoiceNinja"
+        actions={<Button variant="primary" onClick={() => setShowCreate((s) => !s)}><FaPlus /> Neuer Lead</Button>}
       />
 
       {showCreate && (
         <div style={{ marginBottom: 16 }}>
-          <CreateCustomerForm
+          <CreateLeadForm
             onCancel={() => setShowCreate(false)}
             onDone={async (data) => {
-              const r = await createCustomer(data)
-              if (r.success) { setShowCreate(false); refresh() }
+              const r = await createLead(data, user)
+              setShowCreate(false)
+              refresh()
               return r
             }}
           />
@@ -44,8 +53,9 @@ export default function CustomersPage() {
       <Card pad={false}>
         <div className="ui-card-head" style={{ gap: 12, flexWrap: 'wrap' }}>
           <div className="seg">
-            <button className={!onlyImportant ? 'active' : ''} onClick={() => setOnlyImportant(false)}>Alle</button>
-            <button className={onlyImportant ? 'active' : ''} onClick={() => setOnlyImportant(true)}>Wichtige</button>
+            <button className={stage === 'all' ? 'active' : ''} onClick={() => setStage('all')}>Alle</button>
+            <button className={stage === 'lead' ? 'active' : ''} onClick={() => setStage('lead')}>Leads</button>
+            <button className={stage === 'customer' ? 'active' : ''} onClick={() => setStage('customer')}>Feste Kunden</button>
           </div>
           <input className="form-control search-input" placeholder="Kunde suchen..." value={search} onChange={(e) => setSearch(e.target.value)} style={{ maxWidth: 320 }} />
         </div>
@@ -53,28 +63,34 @@ export default function CustomersPage() {
           {loading ? (
             <div className="empty"><FaSpinner className="spinner" /></div>
           ) : filtered.length === 0 ? (
-            <EmptyState title="Keine Kunden" hint="Lege deinen ersten Kunden an." />
+            <EmptyState title="Keine Eintraege" hint="Lege einen neuen Lead an." />
           ) : (
             <div className="list">
-              {filtered.map((c) => (
-                <Link key={c.$id} to={`/customers/${c.$id}`} className="list-row">
-                  <div className="side-logo" style={{ width: 34, height: 34, fontSize: 13 }}>
-                    {(c.name || '?').charAt(0).toUpperCase()}
-                  </div>
-                  <div className="grow">
-                    <div style={{ fontWeight: 700, display: 'flex', alignItems: 'center', gap: 8 }}>
-                      {c.importantCustomer && <FaStar style={{ color: 'var(--warn)' }} title="Wichtiger Kunde" />}
-                      {c.name}
-                      {c.code && <span className="faint" style={{ fontWeight: 400 }}>� {c.code}</span>}
+              {filtered.map((c) => {
+                const st = customerStage(c)
+                return (
+                  <Link key={c.$id} to={`/customers/${c.$id}`} className="list-row">
+                    <div className="side-logo" style={{ width: 34, height: 34, fontSize: 13 }}>
+                      {(c.name || '?').charAt(0).toUpperCase()}
                     </div>
-                    <div className="muted">{[c.location, c.email].filter(Boolean).join(' � ') || '-'}</div>
-                  </div>
-                  <div className="flex gap-2 wrap" style={{ justifyContent: 'flex-end' }}>
-                    {c.invoiceNinjaClientId && <Badge tone="ok"><FaFileInvoiceDollar /> Rechnungen</Badge>}
-                    {c.paperlessCorrespondent && <Badge tone="info"><FaFileLines /> Dokumente</Badge>}
-                  </div>
-                </Link>
-              ))}
+                    <div className="grow">
+                      <div style={{ fontWeight: 700, display: 'flex', alignItems: 'center', gap: 8 }}>
+                        {c.importantCustomer && <FaStar style={{ color: 'var(--warn)' }} title="Wichtiger Kunde" />}
+                        {c.name}
+                        {c.code && <span className="faint" style={{ fontWeight: 400 }}>� {c.code}</span>}
+                      </div>
+                      <div className="muted">{[c.location, c.email].filter(Boolean).join(' � ') || '-'}</div>
+                    </div>
+                    <div className="flex gap-2 wrap" style={{ justifyContent: 'flex-end' }}>
+                      {st === 'lead' && <Badge tone="warn" dot>Lead</Badge>}
+                      {st === 'customer' && <Badge tone="ok" dot>Fester Kunde</Badge>}
+                      {st === 'lost' && <Badge tone="muted">Abgesagt</Badge>}
+                      {c.invoiceNinjaClientId && <Badge tone="info"><FaFileInvoiceDollar /> Ninja</Badge>}
+                      {c.paperlessCorrespondent && <Badge tone="info"><FaFileLines /> Docs</Badge>}
+                    </div>
+                  </Link>
+                )
+              })}
             </div>
           )}
         </div>
@@ -83,34 +99,37 @@ export default function CustomersPage() {
   )
 }
 
-function CreateCustomerForm({ onCancel, onDone }) {
-  const [form, setForm] = useState({ name: '', code: '', location: '', email: '', phone: '' })
+function CreateLeadForm({ onCancel, onDone }) {
+  const [company, setCompany] = useState('')
+  const [email, setEmail] = useState('')
   const [busy, setBusy] = useState(false)
   const [error, setError] = useState(null)
 
   const submit = async (e) => {
     e.preventDefault()
-    if (!form.name) { setError('Name erforderlich'); return }
+    if (!company.trim()) { setError('Unternehmen erforderlich'); return }
     setBusy(true); setError(null)
-    const r = await onDone(form)
-    if (!r.success) { setError(r.error || 'Fehler'); setBusy(false) }
+    try {
+      await onDone({ company: company.trim(), email: email.trim() })
+    } catch (err) {
+      setError(err.message || 'Fehler')
+      setBusy(false)
+    }
   }
 
   return (
-    <Card title="Neuer Kunde">
+    <Card title="Neuer Lead (potenzieller Kunde)">
+      <p className="muted" style={{ marginTop: 0, fontSize: 13 }}>
+        Fuer einen Lead reichen Unternehmen und E-Mail. Es wird automatisch ein Akquise-Ticket erstellt.
+      </p>
       <form onSubmit={submit}>
         <div className="flex gap-3 wrap">
-          <Field label="Name"><input className="form-control" value={form.name} onChange={(e) => setForm({ ...form, name: e.target.value })} required /></Field>
-          <Field label="Code"><input className="form-control" value={form.code} onChange={(e) => setForm({ ...form, code: e.target.value })} /></Field>
-        </div>
-        <div className="flex gap-3 wrap">
-          <Field label="Ort"><input className="form-control" value={form.location} onChange={(e) => setForm({ ...form, location: e.target.value })} /></Field>
-          <Field label="E-Mail"><input className="form-control" type="email" value={form.email} onChange={(e) => setForm({ ...form, email: e.target.value })} /></Field>
-          <Field label="Telefon"><input className="form-control" value={form.phone} onChange={(e) => setForm({ ...form, phone: e.target.value })} /></Field>
+          <Field label="Unternehmen"><input className="form-control" value={company} onChange={(e) => setCompany(e.target.value)} required /></Field>
+          <Field label="E-Mail"><input className="form-control" type="email" value={email} onChange={(e) => setEmail(e.target.value)} /></Field>
         </div>
         {error && <div className="text-red" style={{ marginBottom: 8 }}>{error}</div>}
         <div className="flex gap-2">
-          <Button variant="primary" type="submit" disabled={busy}>{busy ? <FaSpinner className="spinner" /> : 'Anlegen'}</Button>
+          <Button variant="primary" type="submit" disabled={busy}>{busy ? <FaSpinner className="spinner" /> : 'Lead anlegen + Akquise-Ticket'}</Button>
           <Button variant="ghost" type="button" onClick={onCancel}>Abbrechen</Button>
         </div>
       </form>