How To Fix /PF1/MSG_PO_CH_BAPI091 - Enter either PO type or PO type group but not both

SAP Error Message - Details

• Message type: E = Error

• Message class: /PF1/MSG_PO_CH_BAPI -

• Message number: 091

• Message text: Enter either PO type or PO type group but not both

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PF1/MSG_PO_CH_BAPI091 - Enter either PO type or PO type group but not both ?

  The SAP error message /PF1/MSG_PO_CH_BAPI091 indicates that there is a conflict in the input parameters when trying to execute a function related to Purchase Orders (POs). Specifically, the error states that you must enter either a Purchase Order type or a Purchase Order type group, but not both at the same time.
  Cause:
  This error typically occurs when:
  
  Both the Purchase Order type and the Purchase Order type group are being provided in the same request.
  The function module or BAPI being called has specific requirements for input parameters, and providing conflicting parameters leads to this error.
  
  Solution:
  To resolve this error, you should:
  
  Review Input Parameters: Check the parameters being passed to the function or BAPI. Ensure that you are only providing either the Purchase Order type or the Purchase Order type group, but not both.
  Modify the Call: If you are using a custom program or a report, modify the code to ensure that only one of the two parameters is set based on your business logic.
  Testing: After making the necessary changes, test the functionality again to ensure that the error no longer occurs.
  
  Related Information:
  
  BAPI Documentation: Refer to the SAP documentation for the specific BAPI or function module you are using to understand the expected input parameters and their constraints.
  SAP Notes: Check for any relevant SAP Notes that might provide additional context or solutions for this error.
  Debugging: If you have access to the SAP system, you can use the debugger to trace the execution and see where the conflicting parameters are being set.
  
  Example:
  If you are calling a BAPI to create or change a Purchase Order, ensure that your input looks something like this:
  CALL FUNCTION 'BAPI_PO_CREATE'
    EXPORTING
      PO_TYPE = 'NB' " Example PO Type
    " Do not include PO_TYPE_GROUP here
    IMPORTING
      PO_NUMBER = lv_po_number
    EXCEPTIONS
      OTHERS = 1.
  In this example, only PO_TYPE is provided, and PO_TYPE_GROUP is omitted to avoid the error.
  By following these steps, you should be able to resolve the error and successfully execute the desired function related to Purchase Orders in SAP.