How To Fix DT974 - Table &: UUID was regenerated; active nametab header was written

SAP Error Message - Details

• Message type: E = Error

• Message class: DT - Table activation (incl. indexes)

• Message number: 974

• Message text: Table &: UUID was regenerated; active nametab header was written

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 DT974 - Table &: UUID was regenerated; active nametab header was written ?

  The SAP error message DT974 indicates that a UUID (Universally Unique Identifier) for a table has been regenerated, and the active nametab header has been written. This typically occurs in the context of database table management and can be related to issues with the table's structure or its metadata.
  Cause:
  
  Table Structure Changes: The UUID is often regenerated when there are changes made to the structure of the table, such as adding or removing fields, changing data types, or modifying indexes.
  Transport Issues: If the table definition is transported between systems (e.g., from development to production), inconsistencies can lead to UUID regeneration.
  Database Consistency: If there are inconsistencies in the database or if the database was not properly updated, it may trigger this error.
  System Upgrades or Patches: Upgrading the SAP system or applying patches can sometimes lead to changes in table definitions that require UUID regeneration.
  
  Solution:
  
  Check Table Structure: Review the changes made to the table structure. If changes were made, ensure they are correctly implemented and consistent across all environments.
  Transport Consistency: Ensure that the transport requests related to the table are correctly imported and that there are no missing objects.
  Database Consistency Check: Run database consistency checks to identify and resolve any inconsistencies. This can often be done using transaction codes like SE14 (Database Utility) to check and adjust the database.
  Rebuild the Table: If the issue persists, consider rebuilding the table or restoring it from a backup if possible.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide guidance on handling UUID regeneration.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SE11 (Data Dictionary), SE14 (Database Utility), and SE03 (Transport Organizer) for managing table definitions and transports.
  SAP Notes: Regularly check for SAP Notes related to database management and UUID issues, as they may provide specific fixes or workarounds.
  Documentation: Review SAP documentation regarding database management and table handling to understand the implications of UUID changes.
  
  If the problem continues after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance, providing them with detailed information about the error and the context in which it occurred.