diff --git a/App_Server/root/cli.py b/App_Server/root/cli.py
index b768da7..0b31cb5 100644
--- a/App_Server/root/cli.py
+++ b/App_Server/root/cli.py
@@ -164,11 +164,11 @@ def _seed_muster_kontaktadressen():
 
     projekte = session.query(Projekt).order_by(Projekt.id).all()
     vorlagen = [
-        ("Herr", "Thomas Becker", "Becker Webdesign GmbH"),
-        ("Frau", "Sandra Klein", "Klein Marketing"),
-        ("Herr", "Michael Wagner", "Wagner Online Shop"),
-        ("Frau", "Julia Hoffmann", "Hoffmann Consulting"),
-        ("Herr", "Stefan Roth", "Roth IT Solutions"),
+        ("Herr", "Thomas Becker", "Becker Webdesign GmbH", "Geschäftsführer"),
+        ("Frau", "Sandra Klein", "Klein Marketing", "Marketingleiterin"),
+        ("Herr", "Michael Wagner", "Wagner Online Shop", "IT-Leiter"),
+        ("Frau", "Julia Hoffmann", "Hoffmann Consulting", "Beraterin"),
+        ("Herr", "Stefan Roth", "Roth IT Solutions", "Technischer Leiter"),
     ]
     orte = [
         ("Industriestr. 12", "45131", "Essen", "Deutschland"),
@@ -181,7 +181,7 @@ def _seed_muster_kontaktadressen():
     for projekt in projekte:
         anzahl = rng.randint(1, 3)
         for _ in range(anzahl):
-            anrede, name, firma = vorlagen[vorlagen_idx % len(vorlagen)]
+            anrede, name, firma, position = vorlagen[vorlagen_idx % len(vorlagen)]
             vorlagen_idx += 1
             strasse, plz, ort, land = rng.choice(orte)
             ka = Kontaktadresse()
@@ -189,6 +189,7 @@ def _seed_muster_kontaktadressen():
             ka.anrede = anrede
             ka.name = name
             ka.firma = firma
+            ka.position = position
             ka.telefon = "+49 {vorwahl} {nummer}".format(
                 vorwahl=rng.randint(100, 999),
                 nummer=rng.randint(100000, 999999)
diff --git a/App_Server/root/crm/model/__init__.py b/App_Server/root/crm/model/__init__.py
index 7f8ff8e..b5286d2 100644
--- a/App_Server/root/crm/model/__init__.py
+++ b/App_Server/root/crm/model/__init__.py
@@ -168,6 +168,7 @@ class Kontaktadresse(dbapp.Model):
     anrede = Column(String(30), nullable=True)
     name = Column(String(200), nullable=False)
     firma = Column(String(200), nullable=True)
+    position = Column(String(200), nullable=True)
     telefon = Column(String(100), nullable=True)
     email = Column(String(200), nullable=True)
     strasse = Column(String(200), nullable=True)
diff --git a/App_Server/root/crm/model/checkdb.py b/App_Server/root/crm/model/checkdb.py
index 9f387f3..a3704f4 100644
--- a/App_Server/root/crm/model/checkdb.py
+++ b/App_Server/root/crm/model/checkdb.py
@@ -78,6 +78,19 @@ def _db_V01_03():
     session.commit()
 
 
+def _db_V01_04():
+    """
+    Fügt die Spalte 'position' zur Tabelle 'kontaktadressen' hinzu.
+    Bei bestehenden Datenbanken, die mit Version 01.03 initialisiert wurden,
+    fehlt diese Spalte, da das Feld erst nachträglich ergänzt wurde.
+    """
+    from sqlalchemy import text
+
+    session.execute(text("ALTER TABLE kontaktadressen ADD COLUMN position VARCHAR(200)"))
+    _updatesysteminfo('01.04')
+    session.commit()
+
+
 def checkupdates():
     """
     Ermittelt die aktuelle DB-Version aus der Systeminfo-Tabelle und führt alle
diff --git a/App_Server/root/crm/model/kontaktadresse.py b/App_Server/root/crm/model/kontaktadresse.py
index 0efcfea..5ac0669 100644
--- a/App_Server/root/crm/model/kontaktadresse.py
+++ b/App_Server/root/crm/model/kontaktadresse.py
@@ -68,6 +68,7 @@ def create_kontaktadresse(data: dict) -> Kontaktadresse:
     kontaktadresse.anrede = (data.get("anrede") or "").strip() or None
     kontaktadresse.name = data["name"].strip()
     kontaktadresse.firma = (data.get("firma") or "").strip() or None
+    kontaktadresse.position = (data.get("position") or "").strip() or None
     kontaktadresse.telefon = (data.get("telefon") or "").strip() or None
     kontaktadresse.email = (data.get("email") or "").strip() or None
     kontaktadresse.strasse = (data.get("strasse") or "").strip() or None
@@ -107,6 +108,7 @@ def update_kontaktadresse(data: dict) -> Kontaktadresse:
     kontaktadresse.anrede = (data.get("anrede") or "").strip() or None
     kontaktadresse.name = data["name"].strip()
     kontaktadresse.firma = (data.get("firma") or "").strip() or None
+    kontaktadresse.position = (data.get("position") or "").strip() or None
     kontaktadresse.telefon = (data.get("telefon") or "").strip() or None
     kontaktadresse.email = (data.get("email") or "").strip() or None
     kontaktadresse.strasse = (data.get("strasse") or "").strip() or None
diff --git a/Client/Components/call_log.ts b/Client/Components/call_log.ts
index d475822..ba8a893 100644
--- a/Client/Components/call_log.ts
+++ b/Client/Components/call_log.ts
@@ -74,14 +74,14 @@ export const call_log_liste: m.ClosureComponent = (vnode) => {
     const filterFunction = (node: iTreenode, searchvalue: string): boolean => {
         let log: iCallLog = node.nodevalue
         let searchLower = searchvalue.toLowerCase()
-        return log.kunden_name.toLowerCase().includes(searchLower) ||
-               log.projekt_name.toLowerCase().includes(searchLower) ||
-               log.datum.includes(searchLower) ||
-               log.uhrzeit_beginn.toLowerCase().includes(searchLower) ||
-               log.betreff.toLowerCase().includes(searchLower) ||
-               log.name_ansprechpartner.toLowerCase().includes(searchLower) ||
-               log.notiz.toLowerCase().includes(searchLower) ||
-               log.wiedervorlage_datum.includes(searchLower)
+        return (log.kunden_name || "").toLowerCase().includes(searchLower) ||
+               (log.projekt_name || "").toLowerCase().includes(searchLower) ||
+               (log.datum || "").includes(searchLower) ||
+               (log.uhrzeit_beginn || "").toLowerCase().includes(searchLower) ||
+               (log.betreff || "").toLowerCase().includes(searchLower) ||
+               (log.name_ansprechpartner || "").toLowerCase().includes(searchLower) ||
+               (log.notiz || "").toLowerCase().includes(searchLower) ||
+               (log.wiedervorlage_datum || "").includes(searchLower)
     }
 
     return {
diff --git a/Client/Components/kontakt.ts b/Client/Components/kontakt.ts
index 82bff24..f9afc87 100644
--- a/Client/Components/kontakt.ts
+++ b/Client/Components/kontakt.ts
@@ -54,11 +54,11 @@ export const kontaktliste: m.ClosureComponent = (vnode) => {
     const filterFunction = (node: iTreenode, searchvalue: string): boolean => {
         let kontakt: iKontakt = node.nodevalue
         let searchLower = searchvalue.toLowerCase()
-        return kontakt.name.toLowerCase().includes(searchLower) ||
-               kontakt.position.toLowerCase().includes(searchLower) ||
-               kontakt.telefon.toLowerCase().includes(searchLower) ||
-               kontakt.email.toLowerCase().includes(searchLower) ||
-               kontakt.kunden_name.toLowerCase().includes(searchLower)
+        return (kontakt.name || "").toLowerCase().includes(searchLower) ||
+               (kontakt.position || "").toLowerCase().includes(searchLower) ||
+               (kontakt.telefon || "").toLowerCase().includes(searchLower) ||
+               (kontakt.email || "").toLowerCase().includes(searchLower) ||
+               (kontakt.kunden_name || "").toLowerCase().includes(searchLower)
     }
 
     return {
diff --git a/Client/Components/kontaktadresse.ts b/Client/Components/kontaktadresse.ts
index 91cb80c..b66b56c 100644
--- a/Client/Components/kontaktadresse.ts
+++ b/Client/Components/kontaktadresse.ts
@@ -64,10 +64,10 @@ export const kontaktadresseliste: m.ClosureComponent = (vnode) => {
         return [
             m("div", m("strong", kontaktadresse.name)),
             m("span", kontaktadresse.firma),
+            m("span", kontaktadresse.position),
             m("span", kontaktadresse.telefon),
             m("span", kontaktadresse.email),
             m("span", kontaktadresse.ort),
-            m("span", kontaktadresse.projekt_name),
             m("div", {style: {display: 'flex', gap: '0', 'white-space': 'nowrap'}},
                 m("button.w3-button.w3-small", {style: {padding: '0 2px'}, onclick: (e: Event) => editKontaktadresse(kontaktadresse, e)}, m("i.material-icons", "edit")),
                 m("button.w3-button.w3-small", {title: "Gesprächsnotiz hinzufügen", style: {padding: '0 2px'}, onclick: (e: Event) => addCallLog(kontaktadresse, e)}, m("i.material-icons", "add_call"))
@@ -78,12 +78,13 @@ export const kontaktadresseliste: m.ClosureComponent = (vnode) => {
     const filterFunction = (node: iTreenode, searchvalue: string): boolean => {
         let kontaktadresse: iKontaktadresse = node.nodevalue
         let searchLower = searchvalue.toLowerCase()
-        return kontaktadresse.name.toLowerCase().includes(searchLower) ||
-               kontaktadresse.firma.toLowerCase().includes(searchLower) ||
-               kontaktadresse.telefon.toLowerCase().includes(searchLower) ||
-               kontaktadresse.email.toLowerCase().includes(searchLower) ||
-               kontaktadresse.ort.toLowerCase().includes(searchLower) ||
-               kontaktadresse.projekt_name.toLowerCase().includes(searchLower)
+        return (kontaktadresse.name || "").toLowerCase().includes(searchLower) ||
+               (kontaktadresse.firma || "").toLowerCase().includes(searchLower) ||
+               (kontaktadresse.position || "").toLowerCase().includes(searchLower) ||
+               (kontaktadresse.telefon || "").toLowerCase().includes(searchLower) ||
+               (kontaktadresse.email || "").toLowerCase().includes(searchLower) ||
+               (kontaktadresse.ort || "").toLowerCase().includes(searchLower) ||
+               (kontaktadresse.projekt_name || "").toLowerCase().includes(searchLower)
     }
 
     return {
@@ -152,6 +153,7 @@ export const Kontaktadresse: m.ClosureComponent = (vnode) => {
         anrede: string
         name: string
         firma: string
+        position: string
         telefon: string
         email: string
         strasse: string
@@ -166,6 +168,7 @@ export const Kontaktadresse: m.ClosureComponent = (vnode) => {
         anrede: "",
         name: "",
         firma: "",
+        position: "",
         telefon: "",
         email: "",
         strasse: "",
@@ -200,6 +203,7 @@ export const Kontaktadresse: m.ClosureComponent = (vnode) => {
                     anrede: (formData.get("anrede") as string) || "",
                     name: (formData.get("name") as string) || "",
                     firma: (formData.get("firma") as string) || "",
+                    position: (formData.get("position") as string) || "",
                     telefon: (formData.get("telefon") as string) || "",
                     email: (formData.get("email") as string) || "",
                     strasse: (formData.get("strasse") as string) || "",
@@ -228,6 +232,7 @@ export const Kontaktadresse: m.ClosureComponent = (vnode) => {
                     m("label", "Anrede", m(Input, {name: "anrede", value: currentKontaktadresse.anrede, type: "text"} as iInput)),
                     m("label", "Name", m(Input, {name: "name", value: currentKontaktadresse.name, type: "text", required: true} as iInput)),
                     m("label", "Firma", m(Input, {name: "firma", value: currentKontaktadresse.firma, type: "text"} as iInput)),
+                    m("label", "Position", m(Input, {name: "position", value: currentKontaktadresse.position, type: "text"} as iInput)),
                     m("label", "Telefon", m(Input, {name: "telefon", value: currentKontaktadresse.telefon, type: "tel"} as iInput)),
                     m("label", "E-Mail", m(Input, {name: "email", value: currentKontaktadresse.email, type: "email"} as iInput)),
                     m("label", "Straße", m(Input, {name: "strasse", value: currentKontaktadresse.strasse, type: "text"} as iInput)),
diff --git a/Client/Components/kunde.ts b/Client/Components/kunde.ts
index d01273f..60c98ff 100644
--- a/Client/Components/kunde.ts
+++ b/Client/Components/kunde.ts
@@ -117,11 +117,11 @@ export const kundenliste: m.ClosureComponent = (vnode) => {
     const filterFunction = (node: iTreenode, searchvalue: string): boolean => {
         let kunde: iKunde = node.nodevalue
         let searchLower = searchvalue.toLowerCase()
-        return kunde.name.toLowerCase().includes(searchLower) ||
-               kunde.strasse.toLowerCase().includes(searchLower) ||
-               kunde.plz.includes(searchLower) ||
-               kunde.ort.toLowerCase().includes(searchLower) ||
-               kunde.land.toLowerCase().includes(searchLower)
+        return (kunde.name || "").toLowerCase().includes(searchLower) ||
+               (kunde.strasse || "").toLowerCase().includes(searchLower) ||
+               (kunde.plz || "").includes(searchLower) ||
+               (kunde.ort || "").toLowerCase().includes(searchLower) ||
+               (kunde.land || "").toLowerCase().includes(searchLower)
     }
     
     return {
diff --git a/Client/Components/projekt.ts b/Client/Components/projekt.ts
index 229b882..9c909fa 100644
--- a/Client/Components/projekt.ts
+++ b/Client/Components/projekt.ts
@@ -91,11 +91,11 @@ export const projektliste: m.ClosureComponent = (vnode) => {
     const filterFunction = (node: iTreenode, searchvalue: string): boolean => {
         let projekt: iProjekt = node.nodevalue
         let searchLower = searchvalue.toLowerCase()
-        return projekt.kunden_name.toLowerCase().includes(searchLower) ||
-               projekt.projektname.toLowerCase().includes(searchLower) ||
-               projekt.zweck.toLowerCase().includes(searchLower) ||
-               projekt.verantwortlicher.toLowerCase().includes(searchLower) ||
-               projekt.startdatum.includes(searchLower)
+        return (projekt.kunden_name || "").toLowerCase().includes(searchLower) ||
+               (projekt.projektname || "").toLowerCase().includes(searchLower) ||
+               (projekt.zweck || "").toLowerCase().includes(searchLower) ||
+               (projekt.verantwortlicher || "").toLowerCase().includes(searchLower) ||
+               (projekt.startdatum || "").includes(searchLower)
     }
 
     return {
diff --git a/Client/models/kontaktadresse.ts b/Client/models/kontaktadresse.ts
index 587e613..247ddbf 100644
--- a/Client/models/kontaktadresse.ts
+++ b/Client/models/kontaktadresse.ts
@@ -14,6 +14,7 @@ export interface iKontaktadresse {
     anrede: string
     name: string
     firma: string
+    position: string
     telefon: string
     email: string
     strasse: string