How To Fix UPC302 - Errors occurred when executing planning function &1/&2

SAP Error Message - Details

• Message type: E = Error

• Message class: UPC - Planning: General Error Messages

• Message number: 302

• Message text: Errors occurred when executing planning function &1/&2

What causes this issue?

During the execution of a planning function, no data could be generated
in at least one case. You can find the exact cause of the error in the
messages that follow this one.

System Response

Any data that was changed by the planning function is reset to its
original status.

How to fix this error?

Correct the errors that are listed in the following messages and
execute the planning function again.

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 UPC302 - Errors occurred when executing planning function &1/&2 ?

  The SAP error message UPC302, which states "Errors occurred when executing planning function &1/&2," typically occurs in the context of SAP Integrated Business Planning (IBP) or SAP Advanced Planning and Optimization (APO) when there are issues during the execution of a planning function. This error can arise due to various reasons, and understanding the cause is essential for troubleshooting.
  Possible Causes:
  
  Data Issues: There may be inconsistencies or missing data in the planning area or master data that the planning function relies on.
  Configuration Errors: The planning function may not be correctly configured, leading to execution failures.
  Authorization Issues: The user executing the planning function may not have the necessary authorizations to perform the action.
  Technical Errors: There could be underlying technical issues, such as problems with the database, system performance, or network issues.
  Logic Errors: The logic defined in the planning function may have errors or may not handle certain scenarios correctly.
  
  Solutions:
  
  Check Logs: Review the detailed logs associated with the planning function execution. This can provide insights into what specifically went wrong.
  Validate Data: Ensure that all required data is present and correct. Check for missing or inconsistent master data and transactional data.
  Review Configuration: Verify the configuration of the planning function. Ensure that all parameters and settings are correctly defined.
  User Authorizations: Check the user roles and authorizations to ensure that the user has the necessary permissions to execute the planning function.
  Test in a Development Environment: If possible, replicate the issue in a development or test environment to isolate the problem without affecting production data.
  Consult Documentation: Refer to SAP documentation or notes related to the specific planning function for any known issues or additional troubleshooting steps.
  Contact SAP Support: If the issue persists and cannot be resolved through the above steps, consider reaching out to SAP support for further assistance.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address known issues related to UPC302.
  Transaction Codes: Familiarize yourself with transaction codes related to planning functions, such as /SAPAPO/SDP94 for planning book or /SAPAPO/OM17 for planning function maintenance.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  
  By systematically addressing these areas, you should be able to identify the root cause of the UPC302 error and implement an appropriate solution.