diff --git a/OrderCloud.Catalyst/Integrations/Interfaces/ICreditCardProcessor.cs b/OrderCloud.Catalyst/Integrations/Interfaces/ICreditCardProcessor.cs
index 80b8ced..1e6a6a9 100644
--- a/OrderCloud.Catalyst/Integrations/Interfaces/ICreditCardProcessor.cs
+++ b/OrderCloud.Catalyst/Integrations/Interfaces/ICreditCardProcessor.cs
@@ -79,7 +79,17 @@ public class AuthorizeCCTransaction
         /// An optional header value used by some processors to enforce idempotency.
         /// </summary>
         public string RequestID { get; set; }
-	}
+        /// <summary>
+        /// An optional list of OrderCloud Order IDs associated with each supplier included in the transaction.
+        /// </summary>
+        public List<SupplierOrderID> SupplierOrderIDs { get; set; }
+    }
+
+    public class SupplierOrderID
+    {
+		public string SupplierID { get; set; }
+		public string OrderID { get; set; }
+    }
 
 	public class CCTransactionResult
 	{
diff --git a/OrderCloud.Catalyst/OrderCloud.Catalyst.csproj b/OrderCloud.Catalyst/OrderCloud.Catalyst.csproj
index 1830449..50762fc 100644
--- a/OrderCloud.Catalyst/OrderCloud.Catalyst.csproj
+++ b/OrderCloud.Catalyst/OrderCloud.Catalyst.csproj
@@ -3,7 +3,7 @@
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
     <GeneratePackageOnBuild>True</GeneratePackageOnBuild>
-    <Version>2.6.1</Version>
+    <Version>2.7.0</Version>
     <PackageId>ordercloud-dotnet-catalyst</PackageId>
     <Title>OrderCloud SDK Extensions for Azure App Services</Title>
 	<Authors>OrderCloud Team</Authors>
diff --git a/OrderCloud.Integrations.Payment.PayPal/Mappers/PayPalOrderPaymentMapper.cs b/OrderCloud.Integrations.Payment.PayPal/Mappers/PayPalOrderPaymentMapper.cs
index 27c3e9d..6fefded 100644
--- a/OrderCloud.Integrations.Payment.PayPal/Mappers/PayPalOrderPaymentMapper.cs
+++ b/OrderCloud.Integrations.Payment.PayPal/Mappers/PayPalOrderPaymentMapper.cs
@@ -32,6 +32,9 @@ public List<PurchaseUnit> MapToPurchaseUnit(AuthorizeCCTransaction transaction,
                 {
                     var merchantLines =
                         transaction?.OrderWorksheet?.LineItems?.Where(li => li.Product.DefaultSupplierID == m.SupplierID).ToList();
+                    var merchantInvoice = transaction.SupplierOrderIDs?.FirstOrDefault(t => t.SupplierID == m.SupplierID);
+                    var invoiceID = merchantInvoice != null ? merchantInvoice.OrderID : transaction?.OrderID;
+
                     if (merchantLines != null && merchantLines.Any())
                     {
                         var merchantUnit = new PurchaseUnit()
@@ -48,7 +51,7 @@ public List<PurchaseUnit> MapToPurchaseUnit(AuthorizeCCTransaction transaction,
                             },
                             description = transaction?.OrderWorksheet?.Order?.Comments,
                             reference_id = Guid.NewGuid().ToString(),
-                            invoice_id = transaction?.OrderID,
+                            invoice_id = invoiceID
                         };
                         if (address != null)
                         {
diff --git a/OrderCloud.Integrations.Payment.PayPal/OrderCloud.Integrations.Payment.PayPal.csproj b/OrderCloud.Integrations.Payment.PayPal/OrderCloud.Integrations.Payment.PayPal.csproj
index 88a031c..98d5c1a 100644
--- a/OrderCloud.Integrations.Payment.PayPal/OrderCloud.Integrations.Payment.PayPal.csproj
+++ b/OrderCloud.Integrations.Payment.PayPal/OrderCloud.Integrations.Payment.PayPal.csproj
@@ -3,7 +3,7 @@
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
 	  <GeneratePackageOnBuild>True</GeneratePackageOnBuild>
-	  <Version>2.6.1</Version>
+	  <Version>2.7.0</Version>
 	  <PackageId>OrderCloud.Integrations.Payment.PayPal</PackageId>
 	  <Title>OrderCloud Payment Integration with PayPal</Title>
 	  <Authors>OrderCloud Team</Authors>