How To Fix K9028 - There is no valid previous combination

K9028 - Overview

• Message type: E = Error

• Message class: K9 - CO Planning Processor

• Message number: 028

• Message text: There is no valid previous combination

What causes this issue?

You have reached the first valid combination. You cannot page any
further.

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?

Error message extract from SAP system. Copyright SAP SE.

K9028 - Details

• The SAP error message K9028, "There is no valid previous combination," typically occurs in the context of controlling (CO) when you are trying to perform a transaction that requires a valid previous combination of cost elements, cost centers, or other related data. This error can arise in various scenarios, such as during the posting of costs, planning, or reporting.
  
  Cause:
  
  Missing Data: The error often indicates that the system cannot find a valid combination of the required data elements (e.g., cost center, cost element) that is necessary for the transaction you are trying to execute.
  Incorrect Configuration: There may be issues with the configuration of the controlling area, cost centers, or cost elements that prevent the system from recognizing valid combinations.
  Data Inconsistency: If there have been changes in the master data (like cost centers or cost elements) that have not been properly updated or if there are inconsistencies in the data, this error