How To Fix GB121 - Enter a rule

GB121 - Overview

• Message type: E = Error

• Message class: GB - Messages used by the Boolean code generator

• Message number: 121

• Message text: Enter a rule

What causes this issue?

The name of the subrule is required.

System Response

None.

How to fix this error?

Enter the name of the subrule you would like to process.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

GB121 - Details

• The SAP error message GB121 ("Enter a rule") typically occurs in the context of the SAP system when a user is trying to perform an action that requires a specific rule to be defined or selected, but none has been provided. This error is often encountered in areas such as configuration, pricing, or other processes where rules are necessary for the system to proceed.
  
  Cause:
  
  Missing Rule Definition: The most common cause is that the user has not defined or selected a rule that is required for the transaction or process they are attempting to execute.
  Incorrect Configuration: There may be a configuration issue where the rules are not properly set up in the system.
  User Input Error: The user may have overlooked entering the required information in the relevant fields.
  
  
  Solution:
  
  Check Required Fields: Ensure that all mandatory fields are filled out correctly, especially those related to rules.
  Define a Rule: If you are responsible for