Message type: E = Error
Message class:  VHUMI - Messages for material identification 
Message number: 177
Message text: Assignment of HU not allowed for order type
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The SAP error message VHUMI177, which states "Assignment of HU not allowed for order type," typically occurs in the context of handling units (HUs) in SAP Extended Warehouse Management (EWM) or SAP Logistics Execution (LE). This error indicates that the system does not allow the assignment of a handling unit to a specific order type due to configuration settings or business rules.
Cause: Order Type Configuration: The order type you are trying to use may not be configured to allow handling unit assignments. This can happen if the order type is set up in a way that does not support HUs. Warehouse Management Settings: The warehouse management settings may restrict the use of handling units for certain order types. Business Rules: There may be specific business rules or processes in place that prevent the assignment of HUs to certain order types. Missing Customization: The system may not have been customized to handle HUs for the
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