QuickBooks Online - Initiating Order Workflow

To initiate the workflow execute the following steps:
  1. Open an Invoice

  2. Enter Ready in the Fulfillment field.

  3. Optionally enter a value in the Ship via field to specify the Carrier and Service Level to be used. If this is left blank a default value will be selected for you.

Note: A Sales Transaction will never be sent to the fulfillment center until this happens.