How To Fix K8042 - Detailed planning cannot be carried out (no entry-ready cells)

K8042 - Overview

• Message type: E = Error

• Message class: K8 - CO Planning: Messages for Function Group KAPP

• Message number: 042

• Message text: Detailed planning cannot be carried out (no entry-ready cells)

What causes this issue?

You want to carry out detailed planning for the selected combination.
The record in question has no entry-ready data rows, meaning that
changing the plan data is not permitted.
If detailed planning was already done for the combination, this can
only be displayed.
If detailed planning has not yet taken place, you cannot branch to
there because repeated creation would lead to a change in plan data.

Error message extract from SAP system. Copyright SAP SE.

K8042 - Details

• The SAP error message K8042, which states "Detailed planning cannot be carried out (no entry-ready cells)," typically occurs in the context of SAP's Controlling (CO) module, particularly when dealing with planning functions in the Profitability Analysis (CO-PA) or other planning-related transactions.
  
  Cause:
  The error indicates that there are no entry-ready cells available for the detailed planning process. This can happen due to several reasons:
  
  Planning Layout Issues: The planning layout may not be correctly defined or may not include the necessary characteristics or key figures for the planning process.
  Data Availability: There may be no data available for the selected period or version, which means there are no cells to enter data into.
  Planning Version: The planning version being used may not be set up correctly or may not be active.
  Locking Issues: The planning area might be locked by another user or process, preventing access to the cells.
  Authorization Issues: The user may not have the