How To Fix KM638 - You cannot display line items for new plan data

KM638 - Overview

• Message type: E = Error

• Message class: KM - Error messages for Profit Center Accounting

• Message number: 638

• Message text: You cannot display line items for new plan data

What causes this issue?

You chose the function "Display line items".
The data cell you selected belongs to a plan record for which no values
are stored in the database.

System Response

You cannot carry out this function.

How to fix this error?

Select another data cell and then execute the function again, or save
your data first and then execute the function.

Error message extract from SAP system. Copyright SAP SE.

KM638 - Details

• The SAP error message KM638, which states "You cannot display line items for new plan data," typically occurs in the context of planning and budgeting within SAP, particularly in the Controlling (CO) module. This error indicates that the system is unable to display line items for a planning version that has not yet been fully processed or saved.
  
  Cause:
  
  New Planning Version: The error often arises when you are trying to access line items for a planning version that has just been created and has not yet been activated or saved properly.
  Data Not Yet Posted: If the planning data has not been posted or if the planning run has not been executed, the system will not have any line items to display.
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to view the line items for the specified planning version.
  Incorrect Selection: The selection criteria used to display the line items