How To Fix DT299 - Append has no fields

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 299

• Message text: Append has no fields

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 DT299 - Append has no fields ?

  The SAP error message DT299, which states "Append has no fields," typically occurs when you are trying to create or modify a database table or structure in the Data Dictionary (SE11) and the append structure you are working with does not contain any fields. This can happen in various scenarios, such as when you are trying to add an append structure to a table or when you are trying to activate a table that has an empty append structure.
  Cause:
  
  Empty Append Structure: The append structure you are trying to use does not have any fields defined in it.
  Incorrect Configuration: There may be a misconfiguration in the way the append structure is set up or linked to the main table.
  Activation Issues: If the append structure is not activated properly, it may lead to this error.
  
  Solution:
  
  
  Check the Append Structure:
  
  Go to transaction SE11 (Data Dictionary).
  Enter the name of the append structure and check its definition.
  Ensure that there are fields defined in the append structure. If there are no fields, you need to add at least one field to it.
  
  
  
  Add Fields:
  
  If the append structure is empty, you can add fields by editing the structure. Make sure to define the fields with appropriate data types and lengths.
  
  
  
  Activate the Append Structure:
  
  After adding fields, make sure to activate the append structure. You can do this by selecting the structure and clicking on the "Activate" button.
  
  
  
  Check Related Objects:
  
  If the append structure is linked to a table, ensure that the main table is also activated. Sometimes, the main table may need to be activated again after changes are made to the append structure.
  
  
  
  Transport Requests:
  
  If you are working in a development environment and plan to transport changes to a production environment, ensure that the changes are included in a transport request.
  
  
  
  Related Information:
  
  Transaction Codes: SE11 (Data Dictionary), SE14 (Database Utility), SE80 (Object Navigator).
  Documentation: Refer to SAP Help documentation for more details on Data Dictionary objects and append structures.
  SAP Notes: Check for any relevant SAP Notes that might address specific issues related to this error message.
  
  If you continue to experience issues after following these steps, consider reaching out to your SAP Basis or ABAP team for further assistance, as they may have additional insights or tools to diagnose the problem.