How To Fix PP302 - System error: possible entries not possible with mode &1

SAP Error Message - Details

• Message type: E = Error

• Message class: PP -

• Message number: 302

• Message text: System error: possible entries not possible with mode &1

What causes this issue?

The RH_OBJID_REQUEST function module was called using a value (&V1&)
that is not allowed for the MODE parameter.
This error can occur in MODE 4 if the object type is not a person or
applicant.

System Response

The possible entries function is canceled.

How to fix this error?

If the error occurs in one of your programs, check that the module is
called correctly.
If the error occurs in an SAP program, refer the problem to SAP.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message PP302 - System error: possible entries not possible with mode &1 ?

  The SAP error message PP302 ("System error: possible entries not possible with mode &1") typically occurs in the context of the Production Planning (PP) module when there is an issue with the configuration or data that prevents the system from processing a request correctly. This error can arise in various scenarios, such as during the creation of production orders, planning, or when trying to access certain data.
  Possible Causes:
  
  Incorrect Configuration: The system may not be configured correctly for the specific mode being used (e.g., planning mode, execution mode).
  Missing Master Data: Required master data (like material master, routing, or work center) may be incomplete or missing.
  Authorization Issues: The user may not have the necessary authorizations to access certain data or perform specific actions.
  Data Inconsistencies: There may be inconsistencies in the data that the system is trying to process, such as invalid entries or relationships.
  System Settings: The settings in the configuration may not align with the expected values for the operation being performed.
  
  Solutions:
  
  Check Configuration: Review the configuration settings for the relevant PP module components. Ensure that the modes being used are correctly set up.
  Verify Master Data: Ensure that all necessary master data is complete and accurate. Check the material master, routing, and work center data for any missing or incorrect entries.
  Review Authorizations: Check the user’s authorizations to ensure they have the necessary permissions to perform the action that triggered the error.
  Data Consistency Check: Run consistency checks on the relevant data to identify and correct any inconsistencies.
  Consult SAP Notes: Look for relevant SAP Notes that may address this specific error. SAP frequently updates its knowledge base with solutions for known issues.
  Debugging: If you have access to technical resources, consider debugging the process to identify the exact point of failure and the data being processed at that time.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in the PP module, such as CO01 (Create Production Order), MD01 (MRP Run), etc.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  Documentation: Review SAP documentation for the PP module to understand the expected configurations and data requirements.
  
  If the issue persists after trying the above solutions, it may be beneficial to involve your SAP support team or consult with an SAP expert for further assistance.