How To Fix EDEREG_TOOLS321 - Internal document number in &1 also in &2 items of other advice notes

SAP Error Message - Details

• Message type: E = Error

• Message class: EDEREG_TOOLS - Deregulation Check Framework

• Message number: 321

• Message text: Internal document number in &1 also in &2 items of other advice notes

What causes this issue?

The items in the payment advice note were also found in other payment
advice notes.
Check whether distribution lots were generated and posted from more than
one of these payment advice notes.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message EDEREG_TOOLS321 - Internal document number in &1 also in &2 items of other advice notes ?

  The SAP error message EDEREG_TOOLS321 indicates that there is a conflict with internal document numbers in the context of advice notes. Specifically, it suggests that the internal document number in one item is also present in other items of different advice notes, which can lead to inconsistencies in document processing.
  
  Cause:
  
  Duplicate Document Numbers: The error typically arises when the same internal document number is being used across multiple advice notes. This can happen due to incorrect data entry, system errors, or issues during data migration.
  Data Integrity Issues: There may be underlying data integrity issues in the database that are causing the same document number to be referenced in multiple places.
  
  Configuration Issues: Incorrect configuration settings in the SAP system related to document number assignment can also lead to this error.
  
  
  Solution:
  
  Identify Duplicates: Check the database or the relevant tables to identify where the duplicate internal document numbers are being used. You can use