How To Fix /ISIDEX/EDEREG_INV020 - No unique allocation of ID &1 / identification &2 to a service ID

SAP Error Message - Details

• Message type: E = Error

• Message class: /ISIDEX/EDEREG_INV -

• Message number: 020

• Message text: No unique allocation of ID &1 / identification &2 to a service ID

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /ISIDEX/EDEREG_INV020 - No unique allocation of ID &1 / identification &2 to a service ID ?

  The SAP error message /ISIDEX/EDEREG_INV020 indicates that there is no unique allocation of a specific ID (represented by &1) and identification (represented by &2) to a service ID in the system. This typically occurs in the context of service management or service registration processes within SAP, particularly in the IS-U (Utilities) module.
  Cause:
  
  
  Duplicate Entries: The most common cause of this error is the presence of duplicate entries in the database for the specified ID and identification. This means that the system has found multiple records that match the criteria, which prevents it from determining a unique allocation.
  
  
  Configuration Issues: There may be issues with the configuration settings related to service IDs, leading to conflicts or overlaps in the identification process.
  
  
  Data Integrity Issues: There could be data integrity issues in the database, such as missing or incorrect relationships between service IDs and their corresponding IDs.
  
  
  Solution:
  
  
  Check for Duplicates: 
  
  Use transaction codes like SE16 or SE11 to check the relevant database tables for duplicate entries. Look for the specific ID and identification values that are causing the error.
  If duplicates are found, you may need to delete or correct the duplicate entries to ensure that each ID and identification pair is unique.
  
  
  
  Review Configuration: 
  
  Review the configuration settings related to service IDs in the IS-U module. Ensure that the settings are correctly defined and that there are no overlaps or conflicts.
  Check the customizing settings in SPRO related to service management and service registration.
  
  
  
  Data Consistency Check: 
  
  Perform a data consistency check to ensure that all relationships between service IDs and their corresponding IDs are correctly maintained.
  Use transaction codes like SARA or SDBA to check for data inconsistencies and take corrective actions as necessary.
  
  
  
  Consult Documentation: 
  
  Refer to SAP documentation or notes related to the specific error message for additional insights or recommended actions.
  
  
  
  Contact SAP Support: 
  
  If the issue persists after performing the above checks, consider reaching out to SAP support for further assistance. Provide them with the error message details and any relevant context to help them diagnose the issue.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE16 (Data Browser), SE11 (Data Dictionary), SPRO (Customizing), and SARA (Archive Administration).
  SAP Notes: Search for SAP Notes related to the error message for any patches or updates that may address the issue.
  IS-U Module: Understanding the IS-U module's structure and how service IDs are managed can provide additional context for troubleshooting.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.