How To Fix /IBS/RB021 - Assignment of &1 &2 to &3 &4 is not permitted

SAP Error Message - Details

• Message type: E = Error

• Message class: /IBS/RB -

• Message number: 021

• Message text: Assignment of &1 &2 to &3 &4 is not permitted

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IBS/RB021 - Assignment of &1 &2 to &3 &4 is not permitted ?

  The SAP error message /IBS/RB021 Assignment of &1 &2 to &3 &4 is not permitted typically occurs in the context of the SAP Integrated Business Solutions (IBS) module, particularly when dealing with the assignment of certain objects or entities that are not allowed due to specific business rules or configurations.
  Cause:
  
  Invalid Assignment: The error usually indicates that there is an attempt to assign an object (like a material, customer, vendor, etc.) to another object in a way that is not allowed by the system's configuration or business rules.
  Configuration Issues: There may be configuration settings in the system that restrict certain types of assignments. This could be due to missing or incorrect settings in the customizing of the IBS module.
  Data Integrity Issues: The data being used for the assignment may not meet the necessary criteria or conditions required for a valid assignment.
  Authorization Issues: The user may not have the necessary permissions to perform the assignment.
  
  Solution:
  
  Check Configuration: Review the configuration settings related to the objects you are trying to assign. Ensure that the assignment is allowed based on the business rules defined in the system.
  Validate Data: Ensure that the data being used for the assignment is correct and meets all necessary criteria. This may involve checking master data for completeness and correctness.
  Review Documentation: Consult the SAP documentation or help resources related to the specific module you are working with to understand the rules governing assignments.
  User Authorization: Verify that the user has the necessary authorizations to perform the assignment. If not, work with your SAP security team to obtain the required permissions.
  Consult with SAP Support: If the issue persists, consider reaching out to SAP support for assistance. They can provide insights based on the specific context of your system and the error message.
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may need to use specific transaction codes to check configurations or data (e.g., SPRO for configuration, SE11 for data dictionary).
  SAP Notes: Search for relevant SAP Notes that may address this specific error message or provide additional troubleshooting steps.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.