How To Fix ARUN_MAIN201 - Reservation item cannot be assigned; item relevant to supplier MRP area.

SAP Error Message - Details

• Message type: E = Error

• Message class: ARUN_MAIN -

• Message number: 201

• Message text: Reservation item cannot be assigned; item relevant to supplier MRP area.

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message ARUN_MAIN201 - Reservation item cannot be assigned; item relevant to supplier MRP area. ?

  The SAP error message ARUN_MAIN201 indicates that there is an issue with assigning a reservation item to a specific supplier MRP (Material Requirements Planning) area. This typically occurs when the system is unable to link the reservation item to the appropriate MRP area due to configuration or data issues.
  Cause:
  
  MRP Area Configuration: The MRP area may not be properly configured for the material in question. This can happen if the MRP area is not set up to handle reservations or if the material is not assigned to the correct MRP area.
  Material Master Data: The material master data may not be correctly maintained. This includes missing or incorrect settings related to MRP areas, plant, or storage location.
  Reservation Type: The type of reservation being created may not be compatible with the MRP area settings.
  Authorization Issues: There may be authorization issues preventing the assignment of the reservation to the MRP area.
  
  Solution:
  
  
  Check MRP Area Configuration:
  
  Go to the MRP area configuration in the SAP system and ensure that the MRP area is correctly set up for the material.
  Verify that the MRP area is active and that it is assigned to the relevant plant and storage location.
  
  
  
  Review Material Master Data:
  
  Access the material master record (transaction code MM03) and check the MRP views.
  Ensure that the material is assigned to the correct MRP area and that all necessary fields are filled out correctly.
  
  
  
  Verify Reservation Type:
  
  Check the type of reservation being created and ensure it is compatible with the MRP area settings.
  If necessary, create a different type of reservation that aligns with the MRP area configuration.
  
  
  
  Check Authorizations:
  
  Ensure that the user creating the reservation has the necessary authorizations to assign items to the MRP area.
  Consult with your SAP security team if there are any authorization issues.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help files related to MRP areas and reservations for additional guidance.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  MM03 (Display Material Master)
  MD01 (MRP Run)
  MB21 (Create Reservation)
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to MRP areas and reservations.
  Support: If the issue persists after checking the above points, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  By following these steps, you should be able to identify and resolve the issue causing the ARUN_MAIN201 error message in SAP.