3533839 - Process Communication Error in the Purchase Order Document

You have created a purchase order and sent to supplier. However system creates a process communication error. 
- Purchase Order cannot create a Supplier Invoice Request 

SAP Business ByDesign

1. Go to Purchase Requests and Orders work center
2. Go to Purchase Orders view 
3. Select the relevant Purchase Order and select Edit button 
4. Go to Document Flow tab
5. You can see the Process Communication error

Or

1. You can go to Application and User Management work center 
2. Go to Process Communication Errors view 
3. Select Open errors with Cases

Purchase order item is assigned to account assignment type ABC. However in business configuration work center under account assignment types activity, Supplier Invoice Request is not maintained. Hence the process communication error created. 

You can follow the below steps to fix the error. 

1. Go to Business Configuration work center
2. Go to Implementation Projects and select Open Activity List 
3. Navigate to Fine Tune Activity and search for activity Account Assignment Types 
4. Click on Maintain Account Assignment Types 
5. Select Account Assignment Type ABC
6. Select the tab, Assignment to Business Transactions 
7. Select Add Row and enter 128 - Supplier Invoice Request 
8. Select Save and Close

Once the account assignment type is maintained, you can report a case to SAP and request to restart the process communication errors. 

KBA , SRD-SRM-SI , Supplier Invoicing , Problem