How To Fix CL652 - Select at least one line for the object comparison

CL652 - Overview

• Message type: E = Error

• Message class: CL - Classification

• Message number: 652

• Message text: Select at least one line for the object comparison

What causes this issue?

You want to carry out an object comparison. To do this, you need to
select at least one line with a class in common.

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?

Please select at least one line with a class in common.

Error message extract from SAP system. Copyright SAP SE.

CL652 - Details

• The SAP error message CL652 ("Select at least one line for the object comparison") typically occurs in the context of object comparison in the SAP system, particularly when working with transport requests or when comparing objects in the ABAP Workbench. This error indicates that the system expects at least one line (or object) to be selected for comparison, but none has been selected.
  
  Cause:
  
  No Selection Made: The most common cause of this error is that the user has not selected any objects or lines in the comparison screen.
  Filter Settings: Sometimes, the filter settings may be too restrictive, leading to no objects being displayed for selection.
  User Interface Issue: There may be a temporary glitch in the user interface that prevents the selection of objects.
  
  
  Solution:
  
  Select Objects: Ensure that you select at least one object or line in the comparison screen before proceeding. Look for checkboxes or selection options next to the objects you