How To Fix RU377 - Special Stock Type &1 is not assigned to resvn. &2 item &3 of order &4.

SAP Error Message - Details

• Message type: E = Error

• Message class: RU - Messages for order completion confirmation

• Message number: 377

• Message text: Special Stock Type &1 is not assigned to resvn. &2 item &3 of order &4.

Self-Explanatory Message

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• What is the cause and solution for SAP error message RU377 - Special Stock Type &1 is not assigned to resvn. &2 item &3 of order &4. ?

  The SAP error message RU377 indicates that a special stock type is not assigned to a reservation item in a specific order. This typically occurs in the context of inventory management and production planning when dealing with special stock types such as consignment stock, project stock, or returnable packaging.
  Cause:
  The error can arise due to several reasons:
  
  Missing Assignment: The special stock type (e.g., consignment, project stock) is not assigned to the reservation item in the order.
  Configuration Issues: The configuration settings in the system may not be set up correctly to handle the specific stock type for the reservation.
  Data Inconsistencies: There may be inconsistencies in the master data or the configuration of the material or order type.
  
  Solution:
  To resolve the RU377 error, you can follow these steps:
  
  
  Check Special Stock Assignment:
  
  Go to the transaction code MB21 (Create Reservation) or MB22 (Change Reservation) and check if the special stock type is correctly assigned to the reservation item.
  Ensure that the stock type is valid for the material and the order type you are working with.
  
  
  
  Review Configuration:
  
  Check the configuration settings in the SAP system for the special stock types. This can be done in the SPRO transaction under:
  
  Logistics Execution > Inventory Management > Special Stocks and Special Stock Types > Define Special Stock Types.
  
  
  Ensure that the special stock type is correctly defined and linked to the relevant movement types.
  
  
  
  Material Master Data:
  
  Verify the material master data for the material in question. Ensure that the special stock type is allowed for the material and that it is correctly set up in the relevant views (e.g., MRP, Purchasing).
  
  
  
  Order Type Settings:
  
  Check the order type settings to ensure that it allows for the use of the special stock type. This can be done in the configuration for the order type in the production planning or project systems.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help resources for any specific notes or guidelines related to the special stock type and reservations.
  
  
  
  Testing:
  
  After making the necessary changes, test the process again to see if the error persists.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MB21, MB22, MB1A, MB1B, and MB1C for managing reservations and stock movements.
  SAP Notes: Check for any SAP Notes related to this error message in the SAP Support Portal, as there may be specific patches or updates that address known issues.
  User Roles and Authorizations: Ensure that the user has the necessary authorizations to create or modify reservations and orders involving special stock types.
  
  By following these steps, you should be able to identify the cause of the RU377 error and implement the appropriate solution.