How To Fix RDM_OPT_COMMON021 - Source and target key values are identical

SAP Error Message - Details

• Message type: E = Error

• Message class: RDM_OPT_COMMON - Price Optimization: Messages for General Area

• Message number: 021

• Message text: Source and target key values are identical

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message RDM_OPT_COMMON021 - Source and target key values are identical ?

  The SAP error message RDM_OPT_COMMON021 indicates that there is an issue with the data being processed in the SAP system, specifically that the source and target key values are identical. This typically occurs in scenarios involving data migration, data replication, or data transformation processes where the system is trying to update or insert records.
  Cause:
  The error arises when the system detects that the key values (identifiers) for both the source and target records are the same. This can happen in various situations, such as:
  
  Attempting to update a record with the same key value that already exists in the target.
  Trying to replicate or transform data where the source and target records are not meant to be identical.
  Misconfiguration in the data mapping or transformation logic.
  
  Solution:
  To resolve this error, consider the following steps:
  
  
  Review Data Mapping: Check the mapping configuration to ensure that the source and target key values are correctly defined. Ensure that the transformation logic is set up to handle cases where the source and target records should not be identical.
  
  
  Check for Duplicates: Investigate the data being processed to ensure that there are no unintended duplicates. If the source data contains records that match the target records, you may need to adjust the data or the logic to handle these cases.
  
  
  Modify Update Logic: If the intention is to update records, ensure that the update logic is designed to only update records when there are actual changes. If the source and target values are the same, you may want to skip the update operation.
  
  
  Use Conditional Logic: Implement conditional checks in your data processing logic to handle scenarios where the source and target key values are identical. This can prevent the error from occurring.
  
  
  Consult Documentation: Refer to SAP documentation or support resources for specific guidance related to the module or process you are working with. There may be additional context or configuration settings that can help resolve the issue.
  
  
  Testing: After making changes, conduct thorough testing to ensure that the error is resolved and that the data processing works as expected without introducing new issues.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Transaction Codes: Familiarize yourself with transaction codes related to data migration or replication processes, such as LSMW (Legacy System Migration Workbench) or others relevant to your specific scenario.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to prevent it from occurring in the future.