How To Fix /PF1/MSG_PO_E901 - Calendar for duplicate check not maintained

SAP Error Message - Details

• Message type: E = Error

• Message class: /PF1/MSG_PO_E -

• Message number: 901

• Message text: Calendar for duplicate check not maintained

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PF1/MSG_PO_E901 - Calendar for duplicate check not maintained ?

  The SAP error message /PF1/MSG_PO_E901 Calendar for duplicate check not maintained typically occurs in the context of purchase order processing. This error indicates that the system is unable to perform a duplicate check for purchase orders because the calendar settings required for this check have not been maintained.
  Cause:
  
  
  Missing Calendar Configuration: The error arises when the system cannot find a calendar configuration that is necessary for the duplicate check process. This could be due to:
  
  The calendar not being defined in the system.
  The calendar not being assigned to the relevant purchasing organization or company code.
  
  
  
  Incorrect Settings: There may be incorrect or incomplete settings in the configuration related to the duplicate check for purchase orders.
  
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Calendar Configuration:
  
  Go to the SAP Easy Access screen and navigate to the configuration for purchasing.
  Use transaction code SPRO to access the SAP Reference IMG.
  Navigate to Materials Management > Purchasing > Purchase Order > Define Duplicate Check.
  Ensure that a calendar is defined and properly configured for the duplicate check.
  
  
  
  Assign Calendar:
  
  Ensure that the defined calendar is assigned to the relevant purchasing organization or company code.
  You can check this in the same configuration area where you defined the duplicate check settings.
  
  
  
  Maintain Calendar:
  
  If a calendar does not exist, you may need to create one. This can typically be done in the same configuration area or through transaction codes related to calendar maintenance.
  
  
  
  Testing:
  
  After making the necessary changes, test the purchase order creation process again to ensure that the error no longer occurs.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SPRO for configuration, ME21N for creating purchase orders, and ME22N for changing them.
  Documentation: Refer to SAP documentation or help files for detailed steps on maintaining calendars and duplicate checks in the purchasing module.
  Support: If the issue persists after following the above steps, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  By ensuring that the calendar for duplicate checks is properly maintained and assigned, you should be able to resolve the error message and continue with your purchase order processing.