How To Fix RSB_GUI221 - Call of ABAP API function &1

SAP Error Message - Details

• Message type: E = Error

• Message class: RSB_GUI - Open Hub Destination - GUI

• Message number: 221

• Message text: Call of ABAP API function &1

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSB_GUI221 - Call of ABAP API function &1 ?

  The SAP error message RSB_GUI221, which states "Call of ABAP API function &1," typically occurs in the context of using the SAP Business Warehouse (BW) or SAP BusinessObjects tools. This error can arise due to various reasons, often related to issues with the ABAP function module being called or the context in which it is being executed.
  Possible Causes:
  
  Function Module Issues: The function module being called may not exist, may be incorrectly defined, or may have been deactivated.
  Authorization Issues: The user executing the function may not have the necessary authorizations to call the function module.
  Parameter Mismatch: The parameters being passed to the function module may not match the expected types or formats.
  System Configuration: There may be issues with the system configuration or settings that affect the execution of the function module.
  Transport Issues: If the function module was recently transported from another system, there may be inconsistencies or missing dependencies.
  
  Solutions:
  
  Check Function Module: Verify that the function module exists and is active. You can do this by using transaction SE37 (Function Builder) to check the status of the function module.
  Review Authorizations: Ensure that the user has the necessary authorizations to execute the function module. You can check this using transaction SU53 to analyze authorization failures.
  Parameter Validation: Review the parameters being passed to the function module to ensure they are correct. Check the documentation for the function module to confirm the expected input.
  System Configuration: Check the system settings and configuration related to the function module. This may involve reviewing related settings in transaction SPRO or other configuration transactions.
  Transport Check: If the function module was recently transported, ensure that all dependencies and related objects were also transported correctly. You may need to check the transport logs for any errors.
  
  Related Information:
  
  
  Transaction Codes: 
  
  SE37: Function Module Builder
  SU53: Authorization Check
  ST22: Dump Analysis (to check for runtime errors)
  SM21: System Log (to check for system-related issues)
  
  
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to the function module or error message.
  
  
  Debugging: If the issue persists, consider debugging the function call to identify the exact point of failure. You can set breakpoints in the function module to analyze the flow of execution.
  
  
  If you continue to experience issues after trying these solutions, it may be beneficial to consult with your SAP Basis or ABAP development team for further assistance.