How To Fix DT812 - Standard name & not permitted for append to table &

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 812

• Message text: Standard name & not permitted for append to table &

What causes this issue?

The system normally proposes a default name for the
<DS:TX.APPEND-STRUKTUR>append</> to be defined. In this case, however,
the suggested name does not conform to SAA naming conventions.

System Response

No default value is displayed.

How to fix this error?

Enter a correct name for the append.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DT812 - Standard name & not permitted for append to table & ?

  The SAP error message DT812 indicates that you are trying to append a standard table with a custom structure or field, which is not permitted. This error typically arises when you attempt to modify a standard SAP table by adding fields or appending structures that are not allowed by SAP's data dictionary rules.
  Cause:
  
  Standard Table Restrictions: SAP standard tables are protected from modifications to ensure system integrity and compatibility with future updates. You cannot append fields to standard tables directly.
  Custom Development: If you are trying to enhance a standard table using a custom append structure, it may not be allowed due to the nature of the table or the way it is defined in the data dictionary.
  Transport Issues: Sometimes, the error can occur if there are issues with transport requests or if the system is not properly configured to allow certain modifications.
  
  Solution:
  
  Use Custom Tables: Instead of appending fields to a standard table, create a custom Z-table that meets your requirements. You can then link this custom table to the standard table using foreign keys or other relationships.
  Use Append Structures: If you need to add fields to a standard table, consider using an append structure. However, ensure that the table allows for append structures. You can check this in the data dictionary (SE11).
  Enhancement Options: Explore SAP enhancement options such as Business Add-Ins (BAdIs) or user exits that allow you to add custom logic without modifying standard tables.
  Consult Documentation: Review SAP documentation or notes related to the specific table you are working with to understand its restrictions and enhancement options.
  Check Authorization: Ensure that you have the necessary authorizations to make changes to the data dictionary and that your development environment is correctly set up.
  
  Related Information:
  
  Transaction Codes: Use SE11 (Data Dictionary) to view the structure of the table and check for append structures. Use SE80 (Object Navigator) for more comprehensive development tasks.
  SAP Notes: Search for relevant SAP Notes that may provide additional guidance or updates regarding the specific table or error message.
  Development Guidelines: Familiarize yourself with SAP's guidelines for custom development to avoid issues with standard objects.
  
  If you continue to face issues, consider reaching out to your SAP Basis or development team for further assistance.