How To Fix /SCWM/LT311 - 'Unload' should be the first storage process step

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/LT -

• Message number: 311

• Message text: 'Unload' should be the first storage process step

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/LT311 - 'Unload' should be the first storage process step ?

  The SAP error message /SCWM/LT311 'Unload' should be the first storage process step typically occurs in the context of warehouse management processes in SAP Extended Warehouse Management (EWM). This error indicates that the system expects the 'Unload' step to be the first step in the storage process for a given handling unit or delivery.
  Cause:
  
  Incorrect Process Sequence: The error arises when the sequence of steps in the storage process does not start with the 'Unload' step. This can happen if the process was manually altered or if there was a configuration issue.
  Configuration Settings: The warehouse process type may not be correctly configured to enforce the unloading step as the first step.
  Handling Unit Issues: If the handling unit is not properly set up or if there are inconsistencies in the data related to the handling unit, it may lead to this error.
  
  Solution:
  
  
  Check Process Steps: Review the sequence of steps defined for the storage process in the warehouse process type configuration. Ensure that 'Unload' is set as the first step.
  
  Navigate to the configuration for warehouse process types in the SAP EWM system and verify the sequence of steps.
  
  
  
  Adjust Configuration: If the configuration is incorrect, adjust it to ensure that 'Unload' is the first step. This may involve:
  
  Modifying the warehouse process type settings.
  Ensuring that the relevant process types are assigned correctly to the storage type or storage bin.
  
  
  
  Review Handling Units: Check the handling units involved in the process. Ensure that they are correctly defined and that there are no inconsistencies in the data.
  
  You can use transaction codes like /SCWM/HU to manage and check handling units.
  
  
  
  Test the Process: After making the necessary adjustments, test the storage process again to ensure that the error does not reoccur.
  
  
  Consult Documentation: If the issue persists, refer to SAP documentation or consult with your SAP support team for further troubleshooting.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance.
  Transaction Codes: Familiarize yourself with relevant transaction codes in SAP EWM, such as /SCWM/PRDI for inbound deliveries and /SCWM/PRDI for managing handling units.
  Training and Documentation: Consider reviewing training materials or documentation related to SAP EWM processes to better understand the expected workflows and configurations.
  
  By following these steps, you should be able to resolve the error and ensure that the unloading process is correctly initiated in your warehouse operations.