SAP Knowledge Base Article - Public

2427373 - Process Communication Error in the Purchase Order


Process communication error in the Purchase orders and Purchase order Acknowledgment

Error – Product Category Missing.


SAP Business ByDesign

Reproducing the Issue

  1. Go to the Application and User Management work center.
  2. Go to the Business Data Consistency view.
  3. Select Process Communication Errors view.
  4. Sending Document is blank.
  5. Receiving Document is Purchase Order & Purchase Order Acknowledgment.
  6. Related error - Unplanned items in purchase order confirmation.( you may see other errors also along with warnings)

            Sender Party - Blank
            Receiver Interface Name - PurchaseOrderProcessingOrderingIn
            Error - Product category missing.


One of the below following reasons leads to process communication error;

  1. At the time of Purchase Order acknowledgement;
    • One of the Product/Services appearing in PO acknowledgment does not exist in the Purchase order .
    • The Supplier part number does not exist in Material master
  2. Purchase Order's Supplier and Supplier maintained in the Supplier Part Number tab of Material master does not match or differs.


Delete the Purchase order acknowledgement then follow below

Make sure Product/Services and Supplier Part Number should be available at the time of Purchase Order Acknowledgement creation that happens when you select 'Send confirmation to Account' from  Service order.

 To check the acknowledgment XML payload and to understand the differences in details compared to Purchase order follow below steps:

  1. Go to the Application and User Management work center.
  2. Go to Business communication monitoring view
  3. Enter PO acknowledgment ID in the document ID column or filter using creation time that you see under ' steps to reproduce' mentioned above.
  4. Select the entry and clickon download and choose SAA ESD
  5. Copy and paste the XML on to note pad or word doc on your computer
  6. Compare the XML details with the Purchase order details(we can have deviations in price, quantity and delivery date)

Also make sure that purchase order supplier and Supplier in Supplier Part Number tab under Purchasing matches.

Mention findings and differences you found with Supplier and ask them to send the new PO acknowledgment with correct details.


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SAP Business ByDesign 2208 ; SAP Business ByDesign 2211 ; SAP Business ByDesign 2302