How To Fix /ISDFPS/UPS_COMMAND020 - Error while calling function &1; RC = &2 - &3 &4

SAP Error Message - Details

• Message type: E = Error

• Message class: /ISDFPS/UPS_COMMAND -

• Message number: 020

• Message text: Error while calling function &1; RC = &2 - &3 &4

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 /ISDFPS/UPS_COMMAND020 - Error while calling function &1; RC = &2 - &3 &4 ?

  The SAP error message /ISDFPS/UPS_COMMAND020 typically indicates an issue encountered while calling a function in the SAP system, where the return code (RC) is not as expected. This error is often related to the SAP Integrated Business Planning (IBP) or SAP Supply Chain Management (SCM) modules, particularly in the context of the Unified Planning Solution (UPS).
  Cause:
  The error can be caused by several factors, including but not limited to:
  
  Function Module Issues: The function being called may not be implemented correctly or may have encountered an unexpected condition.
  Authorization Issues: The user executing the function may not have the necessary authorizations to perform the action.
  Data Issues: There may be inconsistencies or missing data in the system that the function requires to execute successfully.
  Configuration Problems: Incorrect configuration settings in the system can lead to this error.
  System Performance: If the system is under heavy load, it may not be able to process the function call in a timely manner.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check the Return Code (RC): Analyze the return code provided in the error message. Different return codes indicate different issues, and understanding the specific code can help pinpoint the problem.
  
  
  Review Function Module: If you have access to the ABAP code, check the implementation of the function module being called. Look for any conditions that could lead to failure.
  
  
  Authorization Check: Ensure that the user has the necessary authorizations to execute the function. You can check this in the user roles and profiles.
  
  
  Data Validation: Verify that all required data is present and correct. Check for any inconsistencies or missing entries in the relevant tables.
  
  
  Configuration Review: Review the configuration settings related to the UPS or IBP modules to ensure they are set up correctly.
  
  
  System Logs: Check the system logs (transaction SLG1) for any additional error messages or warnings that could provide more context about the issue.
  
  
  Performance Monitoring: If the system is under heavy load, consider monitoring performance and optimizing resource usage.
  
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide patches or updates.
  
  
  Contact SAP Support: If the issue persists after trying the above steps, consider reaching out to SAP Support for further assistance.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SLG1 (Application Log) for checking logs, SE37 (Function Module) for reviewing function modules, and SU53 (Authorization Check) for authorization issues.
  Documentation: Refer to SAP documentation for the specific module you are working with (IBP, SCM) for more detailed troubleshooting steps.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  
  By following these steps, you should be able to identify and resolve the underlying cause of the /ISDFPS/UPS_COMMAND020 error in your SAP system.