How To Fix CNV_21525021 - Table T526 does not exist; checks on definitions not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_21525 - Administrator Rename

• Message number: 021

• Message text: Table T526 does not exist; checks on definitions not possible

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 CNV_21525021 - Table T526 does not exist; checks on definitions not possible ?

  The SAP error message CNV_21525021 indicating that Table T526 does not exist; checks on definitions not possible typically arises during data migration or conversion processes, particularly when using SAP's tools for system conversion or data migration, such as the SAP S/4HANA Migration Cockpit or other data transfer tools.
  Cause:
  
  
  Missing Table: The error suggests that the system is trying to access the table T526, which is not present in the database. This could be due to:
  
  The table not being created in the system.
  The table being deleted or not transported correctly.
  The system being in a state where the table is not relevant (e.g., a specific configuration or version).
  
  
  
  Incorrect Configuration: The migration or conversion process may be configured incorrectly, leading to attempts to access non-existent tables.
  
  
  Version Compatibility: If you are migrating from an older version of SAP to a newer one, certain tables may have been deprecated or replaced.
  
  
  Solution:
  
  
  Check Table Existence: Verify if the table T526 exists in your SAP system. You can do this by using transaction code SE11 (Data Dictionary) and checking for the table.
  
  
  Recreate or Transport the Table: If the table is missing, you may need to recreate it or transport it from another system where it exists. This may involve:
  
  Checking the transport logs to ensure that the table was included in the transport.
  Consulting with your Basis team to see if the table can be restored.
  
  
  
  Review Migration Configuration: Ensure that the migration or conversion configuration is correct. Check the settings and mappings to ensure that they align with the current system's structure.
  
  
  Consult SAP Notes: Look for relevant SAP Notes that may address this specific error. SAP frequently releases notes that provide solutions or workarounds for known issues.
  
  
  Check for Version Changes: If you are upgrading or migrating, review the release notes for the version you are moving to. There may be changes in the data model that affect the existence or relevance of certain tables.
  
  
  Contact SAP Support: If the issue persists and you cannot resolve it, consider reaching out to SAP Support for assistance. They can provide guidance based on the specific context of your system.
  
  
  Related Information:
  
  SAP Documentation: Review the official SAP documentation related to data migration and the specific tools you are using.
  Community Forums: Check SAP Community forums or other user groups for similar issues and solutions shared by other users.
  Data Dictionary: Familiarize yourself with the Data Dictionary (SE11) to understand the structure and relationships of tables in your SAP system.
  
  By following these steps, you should be able to diagnose and resolve the error related to the missing T526 table.