How To Fix K9031 - Value & is not allowed in the field "&"

K9031 - Overview

• Message type: E = Error

• Message class: K9 - CO Planning Processor

• Message number: 031

• Message text: Value & is not allowed in the field "&"

What causes this issue?

You entered characteristic value &V1& for characteristic &V2& in a new
row.
Value &V1& does not match the selection criteria defined in the layout
&V3& or in the initial transaction screen, however, and is thus not
allowed.

System Response

The SAP System rejects your entry.

How to fix this error?

Overwrite "&V1&" with a valid characteristic value.
Check the selection criteria in planning layout &V3&.

Error message extract from SAP system. Copyright SAP SE.

K9031 - Details

• The SAP error message K9031 indicates that a specific value entered in a field is not allowed according to the system's configuration or business rules. This error typically occurs in the context of controlling (CO) or financial accounting (FI) modules when trying to post or process transactions.
  
  Cause:
  
  
  Invalid Value: The value entered in the specified field does not meet the criteria defined in the system. This could be due to:
  
  Incorrect account assignment.
  Invalid cost center, internal order, or profit center.
  A value that is not allowed for the specific transaction type or context.
  
  
  
  
  Configuration Issues: The configuration settings in the controlling area or company code may not allow the entered value. This could be due to:
  
  Missing or incorrect master data.
  Restrictions set in the configuration for certain fields.
  
  
  
  Data Entry Errors: Simple typographical errors or incorrect selections from dropdowns can lead to this error.
  
  
  
  Solution:
  
  
  Check the Value: Verify the value you are trying to enter in the