Controlled from backend using the <ValidateToBin> and <ValidateFromBin> -attributes
If both <ValidateToBin> and <ValidateFromBin> is true, the app will register "to" and "from" as two separate registrations. See Order Lines GetOrderLines Response
From version 1.5.10 the validationWarningType attribute can be set on fromBin and toBin steps in the workflow. Setting this value will override the allowBinChange element on the order line.
Block - Translates to allowBinChange="false".
None - Will allow the field to accept any bin value.