How To Fix ME789 - PO item & included in IDoc twice

ME789 - Overview

• Message type: E = Error

• Message class: ME - Purchasing: General Messages

• Message number: 789

• Message text: PO item & included in IDoc twice

What causes this issue?

Purchase order item &V1& occurs in several IDOC item segments
simultaneously.
The units of measure or the action codes in these IDOC item segments do
not agree.

How to fix this error?

Get the supplier to ensure that IDOC item segments relating to the same
PO item in these fields agree, or change the IDOC so that these fields
agree with the PO data, and then re-start the process.

Error message extract from SAP system. Copyright SAP SE.

ME789 - Details

• The SAP error message ME789 indicates that a Purchase Order (PO) item is included in an IDoc (Intermediate Document) twice. This can occur during the process of data transfer between systems, particularly when dealing with EDI (Electronic Data Interchange) or other integration scenarios.
  
  Cause:
  
  
  Duplicate Data: The most common cause is that the same PO item is being sent multiple times in the IDoc. This can happen due to:
  
  Incorrect configuration in the sending system.
  A bug in the application that generates the IDoc.
  Manual errors during data entry or processing.
  
  
  
  IDoc Structure Issues: The structure of the IDoc may not be correctly defined, leading to the same item being referenced multiple times.
  
  
  Data Mapping Errors: If there are issues in the mapping of data from the source system to the IDoc format, it may result in duplicates.
  
  
  
  Solution:
  
  
  Check IDoc Data: Review the IDoc data to identify where the duplicate entries are occurring. You can use transaction codes