How To Fix DT866 - Append cannot be created because table has table category &

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 866

• Message text: Append cannot be created because table has table category &

What causes this issue?

The table being processed is of category POOL, CLUSTER or APPEND. You
cannot create <DS:TX.APPEND-STRUKTUR>appends</> for tables of this
category.

System Response

During table adjustment, the system switches immediately to
<DS:TX.DOKU_RADTBFDS_PHASE2>phase 2</>.

How to fix this error?

Adopt or edit the proposal generated by the system for the original
table.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DT866 - Append cannot be created because table has table category & ?

  The SAP error message DT866 indicates that an append structure cannot be created for a table because the table has a specific table category that does not allow for appending. The table category is represented by the "&" symbol in the error message, which typically refers to a specific type of table in the SAP data dictionary.
  Cause:
  The error occurs when you attempt to create an append structure for a table that is classified under a category that does not support appending. Common table categories that may lead to this error include:
  
  Transparent Tables: These are standard database tables that can be appended.
  Pooled Tables: These are tables that are combined into a single table in the database, and appending is not allowed.
  Cluster Tables: Similar to pooled tables, these are also not allowed to have append structures.
  View Tables: Views are not physical tables and cannot have appends.
  
  Solution:
  To resolve this error, you can consider the following approaches:
  
  
  Check Table Category: Verify the category of the table you are trying to append to. You can do this by navigating to the Data Dictionary (transaction SE11) and checking the table's attributes.
  
  
  Use a Different Table: If the table is of a category that does not support appending, consider using a different table that allows for appending or creating a new transparent table specifically for your needs.
  
  
  Modify Existing Structure: If you need to add fields to the existing table, consider modifying the existing structure of the table (if permissible) instead of creating an append.
  
  
  Use Custom Fields: If you are working with a standard SAP table, consider using custom fields or enhancement options provided by SAP, such as Business Add-Ins (BAdIs) or user exits, to achieve your requirements without appending.
  
  
  Consult Documentation: Review SAP documentation or consult with your SAP Basis or ABAP team for guidance on best practices for extending tables and data structures.
  
  
  Related Information:
  
  Transaction SE11: Use this transaction to view and manage database tables and their structures.
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions related to your specific table and error message.
  SAP Community: Engage with the SAP Community forums for discussions and solutions shared by other SAP users who may have encountered similar issues.
  
  By following these steps, you should be able to address the DT866 error and find a suitable solution for your requirements.