How To Fix /SCWM/SHP_RCV557 - Multiple TUs cannot dock on door &1 / &2 in parallel

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/SHP_RCV -

• Message number: 557

• Message text: Multiple TUs cannot dock on door &1 / &2 in parallel

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/SHP_RCV557 - Multiple TUs cannot dock on door &1 / &2 in parallel ?

  The SAP error message /SCWM/SHP_RCV557 indicates that multiple Transportation Units (TUs) are attempting to dock at the same door in parallel, which is not allowed in the system. This error typically arises in the context of warehouse management and logistics processes within SAP Extended Warehouse Management (EWM).
  Cause:
  
  
  Concurrent Docking Attempts: The primary cause of this error is that more than one TU is trying to dock at the same door at the same time. This can happen due to:
  
  Poor planning of transportation schedules.
  System configuration that does not restrict multiple TUs from docking at the same door.
  Manual errors in assigning TUs to doors.
  
  
  
  Door Configuration: The door may be configured to allow only one TU at a time, which is a common practice to avoid congestion and ensure safety during loading/unloading operations.
  
  
  Solution:
  
  
  Check Docking Assignments: Review the assignments of TUs to the docking doors. Ensure that only one TU is assigned to each door at any given time.
  
  
  Reschedule TUs: If multiple TUs are scheduled to dock at the same time, reschedule them to avoid conflicts. This may involve adjusting the arrival times or changing the assigned doors.
  
  
  Review Door Configuration: Check the configuration settings for the docking doors in the system. If necessary, adjust the settings to allow for better management of TUs, but be cautious as this may lead to other operational issues.
  
  
  Use Queue Management: Implement a queue management system to handle the arrival of TUs more effectively. This can help in managing the flow of TUs and prevent simultaneous docking attempts.
  
  
  Training and Communication: Ensure that warehouse staff are trained on the proper procedures for docking TUs and that there is clear communication regarding scheduling and door assignments.
  
  
  Related Information:
  
  SAP EWM Documentation: Refer to the official SAP EWM documentation for detailed information on managing transportation units and docking processes.
  Transaction Codes: Familiarize yourself with relevant transaction codes in SAP EWM that can help in monitoring and managing TUs and docking assignments.
  Support Notes: Check SAP Support Portal for any relevant notes or updates regarding this error message, as there may be patches or enhancements that address specific issues.
  
  By addressing the root causes and implementing the suggested solutions, you should be able to resolve the error and improve the efficiency of your warehouse operations.