diff --git a/BeWo/ViewModel/OrganisationVM.cs b/BeWo/ViewModel/OrganisationVM.cs
index 389469bf7..04b93b74e 100644
--- a/BeWo/ViewModel/OrganisationVM.cs
+++ b/BeWo/ViewModel/OrganisationVM.cs
@@ -91,6 +91,8 @@ namespace BeWo.ViewModel
 
         public static string PropertyName_Leistungserbringergruppe = nameof(Leistungserbringergruppe);
 
+        public static string PropertyName_BusinessPartnerId = nameof(BusinessPartnerId);
+
         private readonly List<ValueListEntryDC> _AllQualifications;
 
         private string _AccountNumber;
@@ -171,6 +173,8 @@ namespace BeWo.ViewModel
 
         private string _Leistungserbringergruppe;
 
+        private string _BusinessPartnerId;
+
         public OrganisationVM(OrganisationDC pDataContract, List<ValueListEntryDC> pAllQualifications, List<ValueListEntryDC> pPossibleFunctions, List<ValueListEntryDC> pPossibleRoleInOrganisations)
             : base(pDataContract, pDataContract.OrganisationOid == null)
         {
@@ -831,6 +835,21 @@ namespace BeWo.ViewModel
             }
         }
 
+        public string BusinessPartnerId
+        {
+            get { return this._BusinessPartnerId; }
+
+            set
+            {
+                if (this.AreDifferent(this._BusinessPartnerId, value))
+                {
+                    this._BusinessPartnerId = value;
+                    this.StoreDirtyInformation(this.AreDifferent(this.DataContract.BusinessPartnerId, value), nameof(BusinessPartnerId));
+                    this.FirePropertyChanged(nameof(BusinessPartnerId));
+                }
+            }
+        }
+
         protected void CommitContact(string pValue, ContactType pContactType)
         {
             List<ContactDC> lOldContactDCs;
@@ -896,6 +915,7 @@ namespace BeWo.ViewModel
                 this._IKKostentrager = pDataContract.IKKostentrager;
                 this._IKDatenannahmestelle = pDataContract.IKDatenannahmestelle;
                 _Leistungserbringergruppe = pDataContract.Leistungserbringergruppe;
+                _BusinessPartnerId = pDataContract.BusinessPartnerId;
 
                 _Function = pDataContract.Function;
 
@@ -1003,6 +1023,7 @@ namespace BeWo.ViewModel
             pDataContract.IKKostentrager = this._IKKostentrager;
             pDataContract.IKKrankenkasse = this._IKKrankenkasse;
             pDataContract.Leistungserbringergruppe = _Leistungserbringergruppe;
+            pDataContract.BusinessPartnerId = _BusinessPartnerId;
 
             this.CommitContact(this._Phone, ContactType.business_Phone);
             this.CommitContact(this._Website, ContactType.business_Homepage);
diff --git a/Data/Entities/Organisation.cs b/Data/Entities/Organisation.cs
index 17810efec..3e8d40d3c 100644
--- a/Data/Entities/Organisation.cs
+++ b/Data/Entities/Organisation.cs
@@ -32,6 +32,8 @@ namespace BeWo.Data.Entities
 
         public static string PropertyName_Leistungserbringergruppe = nameof(Leistungserbringergruppe);
 
+        public static string PropertyName_BusinessPartnerId = nameof(BusinessPartnerId);
+
         private Address _Address;
 
         private BankAccount _BankAccount;
@@ -66,6 +68,7 @@ namespace BeWo.Data.Entities
 
         private string _Leistungserbringergruppe;
 
+        private string _BusinessPartnerId;
 
         public Organisation()
         {
@@ -332,5 +335,21 @@ namespace BeWo.Data.Entities
                 }
             }
         }
+
+        public virtual string BusinessPartnerId
+        {
+            get
+            {
+                return this._BusinessPartnerId;
+            }
+
+            set
+            {
+                if (this.AreDifferent(this._BusinessPartnerId, value))
+                {
+                    this._BusinessPartnerId = value;
+                }
+            }
+        }
     }
 }
\ No newline at end of file
diff --git a/Data/Mappings/Organisation.hbm.xml b/Data/Mappings/Organisation.hbm.xml
index a222f1267..b5457f4e0 100644
--- a/Data/Mappings/Organisation.hbm.xml
+++ b/Data/Mappings/Organisation.hbm.xml
@@ -16,10 +16,11 @@
         <property column="UdpUser" type="String" name="UdpUser" length="256" />
         <property column="IsActive" type="BS.Shared.ActivationTypeId, BS.Shared" name="IsActive" />
         <property column="SystemEntryID" type="BS.Shared.SystemEntryID, BS.Shared" name="SystemEntryID" />
-		<property column="IKKrankenkasse" type="String" name="IKKrankenkasse" length="16" />
-		<property column="IKKostentrager" type="String" name="IKKostentrager" length="16" />
-		<property column="IKDatenannahmestelle" type="String" name="IKDatenannahmestelle" length="16" />
-		<property column="Leistungserbringergruppe" type="String" name="Leistungserbringergruppe" length="7" />
+		<property column="IKKrankenkasse" type="String" name="IKKrankenkasse" length="256" />
+		<property column="IKKostentrager" type="String" name="IKKostentrager" length="256" />
+		<property column="IKDatenannahmestelle" type="String" name="IKDatenannahmestelle" length="256" />
+		<property column="Leistungserbringergruppe" type="String" name="Leistungserbringergruppe" length="256" />
+		<property column="BusinessPartnerId" type="String" name="BusinessPartnerId" length="256" />
 
 		<many-to-one name="Address" column="AddressOid" class="BeWo.Data.Entities.Address, BeWo.Data" cascade="all" fetch="join"/>
         <many-to-one name="InvoiceAddress" column="InvoiceAddressOid" class="BeWo.Data.Entities.Address, BeWo.Data" cascade="all" fetch="join"/>
diff --git a/Model/Changes_2024_09_16 Organisation BusinessPartnerId.txt b/Model/Changes_2024_09_16 Organisation BusinessPartnerId.txt
new file mode 100644
index 000000000..4ef3b61e8
--- /dev/null
+++ b/Model/Changes_2024_09_16 Organisation BusinessPartnerId.txt	
@@ -0,0 +1,2 @@
+ALTER TABLE `organisation` 
+ADD COLUMN `BusinessParnerId` VARCHAR(256) NULL DEFAULT NULL AFTER `Leistungserbringergruppe`;
diff --git a/Report/ReportObjects/Settlement2RO.cs b/Report/ReportObjects/Settlement2RO.cs
index 7706bcf53..290d314dc 100644
--- a/Report/ReportObjects/Settlement2RO.cs
+++ b/Report/ReportObjects/Settlement2RO.cs
@@ -141,6 +141,8 @@ namespace BeWo.Report.ReportObjects
 
         public bool HasGroupRecords { get; set; }
 
+        public String BusinessPartnerId { get; set; }
+
         public List<SettlementInvoiceItemRO> InvoiceItems { get; set; }
 
         public IList<ServiceRecordDC> Fehlkontakte { get; set; }
@@ -346,6 +348,11 @@ namespace BeWo.Report.ReportObjects
                     if (contact != null)
                         lResult.RecipientPhone = contact.Value;
                 }
+
+                if (!org.BusinessPartnerId.IsNullOrEmpty())
+                {
+                    lResult.BusinessPartnerId = "GP-Nummer: " + org.BusinessPartnerId;
+                }
             }
 
             lResult.SenderContactPerson = pDC.SenderContactPersonFirstName + " " + pDC.SenderContactPersonLastName;
diff --git a/Service/DCEntityMapper/OrganisationDC_Organisation.cs b/Service/DCEntityMapper/OrganisationDC_Organisation.cs
index 1251195e0..69eb81bc5 100644
--- a/Service/DCEntityMapper/OrganisationDC_Organisation.cs
+++ b/Service/DCEntityMapper/OrganisationDC_Organisation.cs
@@ -33,6 +33,8 @@ namespace BeWo.Service.DCEntityMapper
             pDataContract.IKDatenannahmestelle = pEntity.IKDatenannahmestelle;
             pDataContract.Leistungserbringergruppe = pEntity.Leistungserbringergruppe;
 
+            pDataContract.BusinessPartnerId = pEntity.BusinessPartnerId;
+
             if (pEntity.Function != null)
             {
                 pDataContract.Function = MapperFactory.ValueListEntryDC_ValueListEntry.MapToNewDC(pEntity.Function);
@@ -108,6 +110,8 @@ namespace BeWo.Service.DCEntityMapper
             pEntity.IKDatenannahmestelle = pDataContract.IKDatenannahmestelle;
             pEntity.Leistungserbringergruppe = pDataContract.Leistungserbringergruppe;
 
+            pEntity.BusinessPartnerId = pDataContract.BusinessPartnerId;
+
             if (pDataContract.Function == null)
             {
                 pEntity.Function = null;
diff --git a/Shared/DataContracts/OrganisationDC.cs b/Shared/DataContracts/OrganisationDC.cs
index 9bfab28fb..d6ab9f33c 100644
--- a/Shared/DataContracts/OrganisationDC.cs
+++ b/Shared/DataContracts/OrganisationDC.cs
@@ -180,5 +180,8 @@ namespace BS.Shared.DataContracts
 
         [DataMember]
         public string Leistungserbringergruppe { get; set; }
+
+        [DataMember]
+        public string BusinessPartnerId { get; set; }
     }
 }
\ No newline at end of file
diff --git a/Shared/DataContracts/Settlement2DC.cs b/Shared/DataContracts/Settlement2DC.cs
index 501502c4b..b43fc0286 100644
--- a/Shared/DataContracts/Settlement2DC.cs
+++ b/Shared/DataContracts/Settlement2DC.cs
@@ -224,7 +224,10 @@ namespace BS.Shared.DataContracts
 
         [DataMember]
         public bool HasGroupRecords { get; set; }
-        
+
+        [DataMember]
+        public string BusinessPartnerId { get; set; }
+
         [DataMember]
         public List<InvoiceItemDC> InvoiceItems { get; set; }