How To Fix RSB_GUI202 - Error calling ABAP API: &1

SAP Error Message - Details

• Message type: E = Error

• Message class: RSB_GUI - Open Hub Destination - GUI

• Message number: 202

• Message text: Error calling ABAP API: &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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSB_GUI202 - Error calling ABAP API: &1 ?

  The SAP error message RSB_GUI202, which states "Error calling ABAP API: &1," typically occurs in the context of SAP BW (Business Warehouse) or SAP BI (Business Intelligence) when there is an issue with the execution of an ABAP function module or method. The "&1" in the message will usually be replaced with a specific error message or code that provides more context about the issue.
  Possible Causes:
  
  Authorization Issues: The user executing the report or transaction may not have the necessary authorizations to call the ABAP API.
  Incorrect Parameters: The parameters being passed to the ABAP function module may be incorrect or not in the expected format.
  System Configuration: There may be issues with the configuration of the BW system or the specific InfoProvider being accessed.
  Data Issues: There could be issues with the data being processed, such as missing or inconsistent data.
  Transport Issues: If the ABAP code was recently transported from another system, there may be inconsistencies or missing objects.
  System Performance: Performance issues or timeouts may occur if the system is under heavy load.
  
  Solutions:
  
  Check Authorizations: Ensure that the user has the necessary authorizations to execute the ABAP function/module. You can use transaction SU53 to analyze authorization failures.
  Review Parameters: Verify that the parameters being passed to the ABAP API are correct. Check the documentation for the function module to ensure compliance.
  Check Configuration: Review the configuration of the BW system and the specific InfoProvider. Ensure that all necessary settings are correctly configured.
  Data Validation: Check the data being processed for any inconsistencies or missing values. You may need to run data consistency checks.
  Transport Validation: If the issue arose after a transport, check the transport logs and ensure that all necessary objects were transported correctly.
  System Monitoring: Monitor system performance and check for any locks or long-running processes that may be affecting the execution of the ABAP API.
  
  Related Information:
  
  Transaction Codes: Use transaction codes like ST22 (Dump Analysis), SM21 (System Log), and SLG1 (Application Log) to gather more information about the error.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  Debugging: If you have access, consider debugging the ABAP code to identify the exact point of failure and the parameters being passed.
  
  If the issue persists after trying the above solutions, it may be necessary to involve your SAP Basis or ABAP development team for further investigation.