How To Fix IEN174 - Reservation created automatically. No manual changes possible

SAP Error Message - Details

• Message type: E = Error

• Message class: IEN -

• Message number: 174

• Message text: Reservation created automatically. No manual changes possible

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message IEN174 - Reservation created automatically. No manual changes possible ?

  The SAP error message IEN174 ("Reservation created automatically. No manual changes possible") typically occurs in the context of inventory management and materials planning. This message indicates that a reservation has been created automatically by the system, and as a result, manual changes to that reservation are restricted.
  Cause:
  
  Automatic Reservation Creation: The reservation was created automatically by the system due to a process such as a production order, sales order, or other planning activities. This is common in scenarios where materials are reserved for specific purposes without manual intervention.
  System Settings: The configuration in the system may be set to prevent manual changes to automatically created reservations to maintain data integrity and avoid conflicts.
  Document Type: The type of document that generated the reservation may have specific rules that restrict manual changes.
  
  Solution:
  
  Check Reservation Type: Review the type of reservation that has been created. If it is linked to a specific document (like a production order), you may need to make changes to that document instead of the reservation.
  Use the Correct Transaction: If you need to adjust the reservation, consider using the appropriate transaction code (like MB22 for changing reservations) and ensure you are following the correct process for the type of reservation.
  Review Configuration: If you believe manual changes should be allowed, consult with your SAP configuration team to review the settings related to reservation creation and modification. They may need to adjust the configuration to allow manual changes under certain conditions.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on handling reservations and the implications of automatic creation.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as:
  
  MB21: Create Reservation
  MB22: Change Reservation
  MB23: Display Reservation
  
  
  User Roles and Authorizations: Ensure that you have the necessary authorizations to make changes to reservations, as restrictions may also be due to user role settings.
  SAP Notes: Check for any SAP Notes related to this error message for additional insights or patches that may address specific issues.
  Training and Documentation: Consider training sessions or documentation on inventory management processes in SAP to better understand how reservations work and the implications of automatic creation.
  
  If the issue persists or if you need further assistance, it may be beneficial to reach out to your SAP support team or consult with an SAP expert.