How To Fix USMD1531 - Validity concept of entity type &1 must not be changed

SAP Error Message - Details

• Message type: E = Error

• Message class: USMD1 - Datenmodel

• Message number: 531

• Message text: Validity concept of entity type &1 must not be changed

What causes this issue?

The data model is already active. In this case, you may no longer change
the validity concept of an entity type.

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?

If you want to use a different validity concept (for example,
edition-dependent) for the entity type, you can create a copy of the
data model, change the validity concept in the copy, and then activate
this data model.

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 USMD1531 - Validity concept of entity type &1 must not be changed ?

  The SAP error message USMD1531 indicates that there is an issue with the validity concept of an entity type in the Master Data Governance (MDG) application. This error typically arises when there is an attempt to change the validity concept of an entity type that is not allowed or is inconsistent with the current configuration.
  Cause:
  
  Invalid Change Attempt: The error occurs when a user tries to modify the validity concept (e.g., changing the validity period or the way validity is managed) of an entity type that is already in use or has existing data.
  Configuration Restrictions: Certain configurations in SAP MDG restrict changes to the validity concept once it has been defined and used in the system.
  Data Consistency: The system may prevent changes to ensure data consistency and integrity, especially if there are existing records that rely on the current validity concept.
  
  Solution:
  
  Review Changes: Check the changes you are trying to make to the validity concept. Ensure that they are necessary and that you understand the implications of these changes.
  Consult Documentation: Refer to the SAP documentation for MDG to understand the limitations and rules regarding the validity concept for entity types.
  Data Cleanup: If there are existing records that conflict with the changes you want to make, consider cleaning up or archiving those records before attempting to change the validity concept.
  Use a Different Approach: If changing the validity concept is not feasible, consider alternative approaches to achieve your goals without altering the existing configuration.
  Contact SAP Support: If you are unsure about the changes or if the error persists, it may be beneficial to contact SAP support for assistance. They can provide guidance based on your specific system configuration and requirements.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context on the validity concept in MDG.
  MDG Configuration: Familiarize yourself with the configuration settings for entity types in MDG, particularly those related to validity and data governance.
  Testing Environment: If possible, replicate the issue in a testing environment to better understand the cause and test potential solutions without affecting production data.
  
  By following these steps, you should be able to address the USMD1531 error and understand the implications of changes to the validity concept in SAP MDG.