How To Fix /SCWM/GTS020 - Previous document number could not be changed (unloading warehouse tasks)

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCWM/GTS -

• Message number: 020

• Message text: Previous document number could not be changed (unloading warehouse tasks)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCWM/GTS020 - Previous document number could not be changed (unloading warehouse tasks) ?

  The SAP error message /SCWM/GTS020 indicates that there is an issue with changing the previous document number in the context of unloading warehouse tasks in the SAP Extended Warehouse Management (EWM) module. This error typically arises when there is an attempt to modify a document that is not allowed to be changed due to certain constraints or conditions.
  
  Cause:
  
  Document Status: The document you are trying to change may be in a status that does not allow modifications. For example, if the document is already processed or completed, changes may not be permitted.
  Reference Integrity: The system may have integrity checks that prevent changes to documents that are referenced by other documents or processes.
  Configuration Settings: There may be specific configuration settings in the EWM or GTS (Global Trade Services) that restrict changes to certain document types or under certain conditions.
  User Authorizations: The user attempting to make the change may not have the necessary