How To Fix CB621 - Cannot perform input check at the moment. Value must be rejected

SAP Error Message - Details

• Message type: E = Error

• Message class: CB - PP-PI-PMA: Dialog Messages for Process Management

• Message number: 621

• Message text: Cannot perform input check at the moment. Value must be rejected

What causes this issue?

According to the definition of characteristic &V1&, the input check is
to be called in a remote system (RFC destination &V2&) and display this
message in the case of an error.
The RFC call returns the following error message: "&V3&&V4&".

System Response

The value you entered must be rejected.

How to fix this error?

Wait until the remote system is available again or the error has been
fixed, and repeat your entry.

Procedure for System Administrators

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message CB621 - Cannot perform input check at the moment. Value must be rejected ?

  The SAP error message CB621, which states "Cannot perform input check at the moment. Value must be rejected," typically occurs in the context of data validation within SAP systems, particularly when dealing with master data or transactional data entries. This error indicates that the system is unable to perform the necessary checks on the input data, leading to a rejection of the value entered.
  Causes:
  
  System Configuration Issues: There may be issues with the configuration of the input checks in the system, such as missing or incorrect settings in the validation rules.
  Data Inconsistencies: The data being entered may not meet the required criteria or may be inconsistent with existing data in the system.
  Temporary System Issues: Sometimes, temporary issues with the SAP system or database can prevent input checks from being performed.
  Authorization Issues: The user may not have the necessary authorizations to perform the input check, leading to a rejection of the value.
  Custom Code or Enhancements: If there are custom validations or enhancements in place, they may be causing the error due to unexpected input values.
  
  Solutions:
  
  Check Configuration: Review the configuration settings for input checks in the relevant module (e.g., Material Management, Sales and Distribution) to ensure they are set up correctly.
  Data Validation: Verify the data being entered for correctness and completeness. Ensure that it adheres to the expected formats and values.
  System Status: Check the system status for any ongoing issues or maintenance activities that might affect input checks. If necessary, contact your SAP Basis team.
  User Authorizations: Ensure that the user has the appropriate authorizations to perform the action that is being attempted.
  Review Custom Code: If there are any custom validations or enhancements, review the code to identify any potential issues that could be causing the error.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error message or provide guidance on similar issues.
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may need to use specific transaction codes to access the relevant configuration or data (e.g., MM01 for material master, VA01 for sales orders).
  SAP Community: Engaging with the SAP Community forums can provide insights from other users who may have encountered similar issues.
  Documentation: Refer to SAP documentation for the specific module you are working with to understand the input check mechanisms and validation rules.
  
  If the issue persists after trying the above solutions, it may be beneficial to escalate the matter to your SAP support team or consult with SAP directly for further assistance.