How To Fix DT406 - Append structure & cannot be appended to table of type &

DT406 - Overview

• Message type: E = Error

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

• Message number: 406

• Message text: Append structure & cannot be appended to table of type &

What causes this issue?

The specified append structure was defined for a table which is neither
a structure nor a transparent table.
Appends are only permitted for the above-mentioned types of tables.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Change the table type or delete the append structure.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DT406 - Append structure & cannot be appended to table of type & ?

  The SAP error message DT406 indicates that there is an issue with appending an append structure to a table. Specifically, the message states that the append structure cannot be appended to a table of a certain type. This typically occurs when you are trying to add an append structure to a table that does not support it, or when there are compatibility issues between the append structure and the base table.
  Cause
  
  Table Type Restrictions: The base table may be a pooled or cluster table, which does not support append structures. Append structures can only be added to transparent tables.
  Data Element Compatibility: The data elements in the append structure may not be compatible with the existing fields in the base table.
  Table Locking: The base table might be locked for changes, preventing the append structure from being added.
  Incorrect Configuration: There may be configuration issues or inconsistencies in the data dictionary.
  
  Solution
  
  Check Table Type: Verify