How To Fix AD603 - Do not change field 'TABNAME'

AD603 - Overview

• Message type: E = Error

• Message class: AD - Data Dictionary application messages

• Message number: 603

• Message text: Do not change field 'TABNAME'

What causes this issue?

The first key field in a pool must always be a field TABNAME.

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

System Response

How to fix this error?

Check whether the spelling is correct or define a field TABNAME
CHAR(10).

Error message extract from SAP system. Copyright SAP SE.

AD603 - Details

• The SAP error message AD603 ("Do not change field 'TABNAME'") typically occurs in the context of ABAP development, particularly when working with database tables or structures. This error indicates that there is an attempt to modify the field TABNAME, which is a reserved field in certain contexts, such as when dealing with table definitions or data dictionary objects.
  
  Cause:
  
  Modification of Reserved Fields: The error is triggered when there is an attempt to change the value of the TABNAME field in a context where it is not allowed. This field is often used internally by SAP to identify database tables and should not be altered by developers.
  Incorrect Use of Data Dictionary Objects: If you are trying to manipulate a table or structure in a way that violates SAP's rules for data dictionary objects, this error can occur.
  
  
  Solution:
  
  Review Your Code: Check the ABAP code or the data dictionary object where the error is