How To Fix DDLS456 - At least one column, apart from the client column, must be specified

DDLS456 - Overview

• Message type: E = Error

• Message class: DDLS - For DDL source handling

• Message number: 456

• Message text: At least one column, apart from the client column, must be specified

Self-Explanatory Message

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DDLS456 - Details

• The SAP error message DDLS456 indicates that when you are trying to create or modify a database table, you have not specified any columns other than the client column (which is typically the MANDT column in SAP). This error usually occurs in the context of Data Dictionary (DD) operations, such as when you are using the Data Dictionary tools (like SE11) or when executing a Data Definition Language (DDL) statement.
  
  Cause:
  The primary cause of this error is that the table definition lacks any user-defined columns apart from the mandatory client column. In SAP, every table that is client-dependent must have a client field (MANDT), but it also needs at least one additional field to be meaningful and functional.
  
  Solution:
  To resolve this error, you need to ensure that you define at least one additional column in your table definition. Here are the steps to do this:
  
  
  Open the Data Dictionary (SE11):
  
  Go to transaction code