How To Fix CNV_21527021 - Table TBDLS does not exist; checks on definitions not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_21527 - Logical System Rename

• Message number: 021

• Message text: Table TBDLS 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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_21527021 - Table TBDLS does not exist; checks on definitions not possible ?

  The SAP error message CNV_21527021 indicating that Table TBDLS does not exist; checks on definitions not possible typically arises during data migration or conversion processes, particularly when using SAP's data migration tools or during system upgrades. This error suggests that the system is trying to access a table (TBDLS) that is not present in the database.
  Causes:
  
  Missing Table: The table TBDLS may not have been created or may have been deleted in the database.
  Incorrect Configuration: The migration or conversion process may be incorrectly configured, leading to the system looking for a non-existent table.
  Version Mismatch: The error may occur if there is a version mismatch between the source and target systems, where the target system does not have the expected tables.
  Incomplete Installation: The installation of the relevant SAP components may be incomplete, leading to missing database objects.
  
  Solutions:
  
  Check Table Existence: Verify if the table TBDLS exists in the database. You can do this by using transaction codes like SE11 (Data Dictionary) or SE16 (Data Browser) to check for the table.
  Recreate the Table: If the table is missing, you may need to recreate it. This can often be done by executing the relevant SAP notes or using the appropriate migration tools.
  Review Migration Configuration: Ensure that the migration or conversion configuration is correct and that all necessary prerequisites have been met.
  Check SAP Notes: Look for any relevant SAP Notes that may address this specific error. SAP frequently releases notes that provide fixes or workarounds for known issues.
  Consult Documentation: Review the documentation for the migration tool or process you are using to ensure that all steps have been followed correctly.
  System Upgrade: If this error occurs during an upgrade, ensure that all upgrade steps have been completed successfully and that the system is in a consistent state.
  
  Related Information:
  
  SAP Notes: Search the SAP Support Portal for notes related to the error message CNV_21527021 or the TBDLS table.
  Transaction Codes: Familiarize yourself with transaction codes like SE11, SE16, and others that can help you investigate database objects.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered and resolved similar issues.
  Support: If the issue persists, consider reaching out to SAP Support for assistance, providing them with detailed information about the error and the context in which it occurs.
  
  By following these steps, you should be able to diagnose and resolve the error related to the missing TBDLS table.