How To Fix DT156 - Table & does not exist, converted to CDS View

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 156

• Message text: Table & does not exist, converted to CDS View

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 DT156 - Table & does not exist, converted to CDS View ?

  The SAP error message DT156, which states "Table & does not exist, converted to CDS View," typically occurs when a table that is being referenced in a Data Definition Language (DDL) statement or a Core Data Services (CDS) view does not exist in the database. This can happen for several reasons, including:
  Causes:
  
  Table Deletion or Renaming: The table may have been deleted or renamed in the database, leading to the error when trying to access it.
  Incorrect Table Name: There may be a typo or incorrect table name in the CDS view definition.
  Transport Issues: If the CDS view was transported from one system to another, the underlying table may not have been transported or created in the target system.
  Authorization Issues: The user may not have the necessary authorizations to access the table, leading to the perception that it does not exist.
  Database Connection Issues: There may be issues with the database connection or the database itself, causing the system to not recognize the table.
  
  Solutions:
  
  Verify Table Existence: Check if the table exists in the database using transaction SE11 (Data Dictionary) or SE16 (Data Browser). If it does not exist, you may need to create it or restore it from a backup.
  Check Naming: Ensure that the table name in the CDS view definition is correct and matches the actual table name in the database.
  Transport Check: If the issue arose after a transport, verify that all necessary objects (including the underlying tables) were included in the transport request.
  Authorization Check: Ensure that the user has the necessary authorizations to access the table. You can check this using transaction SU53 to see if there are any authorization issues.
  Database Connection: Check the database connection settings and ensure that the database is up and running without issues.
  CDS View Activation: If the CDS view is newly created or modified, ensure that it is activated properly. Sometimes, reactivating the CDS view can resolve the issue.
  
  Related Information:
  
  CDS Views: Core Data Services (CDS) is a framework for defining and consuming semantically rich data models in SAP. CDS views can be used to create complex queries and data models that can be consumed by various SAP applications.
  Error Handling: When encountering errors like DT156, it is essential to check the system logs (transaction SLG1) for more detailed error messages that can provide additional context.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis team or SAP support for further assistance.