How To Fix USMD1A201 - Changes detected in reuse active area

SAP Error Message - Details

• Message type: E = Error

• Message class: USMD1A - Messages: Abstraction Layer

• Message number: 201

• Message text: Changes detected in reuse active area

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 USMD1A201 - Changes detected in reuse active area ?

  The SAP error message USMD1A201 indicates that changes have been detected in the reuse active area during a data migration or data transfer process. This typically occurs in the context of SAP Master Data Governance (MDG) or similar data management scenarios where data consistency and integrity are critical.
  Cause:
  The error is triggered when the system identifies that there are changes in the data that are being processed, which may conflict with the data already in the reuse active area. This can happen due to:
  
  Concurrent Changes: Another user or process has made changes to the same data while your process was running.
  Data Inconsistency: The data being processed does not match the expected state in the reuse active area.
  Configuration Issues: There may be issues with the configuration of the data model or the active area itself.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Refresh the Data: Ensure that you are working with the most current version of the data. Refresh the data from the source system or re-fetch the data to ensure you have the latest changes.
  
  
  Check for Concurrent Changes: Investigate if other users or processes are making changes to the same data. If so, coordinate with them to avoid conflicts.
  
  
  Review Data Consistency: Validate the data in the reuse active area to ensure it is consistent and matches the expected state. You may need to perform data validation checks.
  
  
  Reprocess the Data: After ensuring that the data is consistent and up-to-date, attempt to reprocess the data migration or transfer.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the specific version of your SAP system for any known issues or additional troubleshooting steps.
  
  
  Contact SAP Support: If the issue persists, consider reaching out to SAP support for further assistance, especially if this is a recurring problem.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context.
  MDG Configuration: Review the configuration settings for your Master Data Governance setup to ensure everything is correctly configured.
  Data Migration Tools: If you are using specific data migration tools (like LSMW, BAPIs, etc.), ensure they are set up correctly and are compatible with your data model.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.