How To Fix DDLS472 - No aggregate function can be added to extend &1

DDLS472 - Overview

• Message type: E = Error

• Message class: DDLS - For DDL source handling

• Message number: 472

• Message text: No aggregate function can be added to extend &1

What causes this issue?

No aggregate function can be added to the view extend ?&V1&?.

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?

The enhanced view "&V2&" must either contain an aggregate function
already or a GROUP BY clause must be added to it.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

DDLS472 - Details

• The SAP error message DDLS472, which states "No aggregate function can be added to extend &1," typically occurs in the context of database table definitions or when working with views in the ABAP Dictionary. This error indicates that there is an issue with trying to add an aggregate function to a database object that does not support it.
  
  Cause:
  
  
  Inappropriate Use of Aggregate Functions: The error usually arises when you attempt to add an aggregate function (like SUM, AVG, COUNT, etc.) to a database object that is not designed to handle such functions. This can happen when extending a view or a table that does not support aggregation.
  
  
  View Type: If you are working with a database view, ensure that the view type (e.g., database view, projection view) supports the use of aggregate functions. Some views are designed for simple data retrieval and do not allow for aggregation.
  
  
  Incorrect Definition: The definition of the