How To Fix DDLS354 - At least one column, in addition to client column &, must be maintained

SAP Error Message - Details

• Message type: E = Error

• Message class: DDLS - For DDL source handling

• Message number: 354

• Message text: At least one column, in addition to client column &, must be maintained

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DDLS354 - At least one column, in addition to client column &, must be maintained ?

  The SAP error message DDLS354 indicates that when you are trying to create or modify a database table, at least one additional column must be defined alongside the client column (usually the MANDT column, which is used for client-specific data in SAP systems). This error typically arises in the context of Data Dictionary (DDIC) operations, such as when defining a new table or modifying an existing one.
  Cause:
  
  Client-Specific Tables: In SAP, tables that are client-specific must have at least one additional column besides the client column. This is to ensure that the table can store meaningful data that is relevant to the specific client.
  Table Definition: The table definition may be incomplete or incorrectly configured, lacking the necessary columns to meet the requirements of a client-specific table.
  
  Solution:
  To resolve the DDLS354 error, you need to ensure that your table definition includes at least one additional column besides the client column. Here are the steps to do this:
  
  Open the Table Definition: Go to the Data Dictionary (transaction SE11) and open the table that is causing the error.
  Add Columns: Ensure that you have at least one additional column defined in the table. This could be a key field or any other relevant field that will hold data.
  Check Data Elements: Make sure that the additional column has a valid data element and is properly defined (data type, length, etc.).
  Save and Activate: After making the necessary changes, save the table definition and activate it. This should resolve the error.
  
  Related Information:
  
  Client Concept in SAP: Understanding the client concept in SAP is crucial. Each client in an SAP system can have its own set of data, and the MANDT field is used to differentiate data belonging to different clients.
  Data Dictionary (DDIC): Familiarize yourself with the Data Dictionary in SAP, as it is essential for defining and managing database objects like tables, views, and data elements.
  SAP Documentation: Refer to SAP Help documentation for more detailed information on table definitions and the client concept.
  
  If you continue to experience issues after following these steps, consider checking for any additional constraints or dependencies that may be affecting the table definition.