How To Fix DT251 - Field &: Data type & does not exist

DT251 - Overview

• Message type: E = Error

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

• Message number: 251

• Message text: Field &: Data type & does not exist

What causes this issue?

A non-existent data type was defined for the given field.

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?

Assign the field an active type or directly enter the data type and
length.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

DT251 - Details

• The SAP error message DT251 ("Field &: Data type & does not exist") typically occurs when there is an issue with the data type definition in the ABAP Dictionary or when a field is referenced that does not exist in the specified context. Here’s a breakdown of the cause, potential solutions, and related information:
  
  Cause:
  
  Non-existent Field: The field being referenced in the program or data dictionary does not exist in the specified table or structure.
  Incorrect Data Type: The data type specified for a field is incorrect or not defined in the ABAP Dictionary.
  Typographical Errors: There may be a typo in the field name or data type in the code or data dictionary.
  Changes in Data Dictionary: If the data dictionary has been modified (e.g., fields added or removed), and the program has not been updated accordingly, this error can occur.
  Transport Issues: If the transport of changes has not been properly executed, the