Updates a fulfillment's properties.
To update a field's value, include the new value in the fulfillment field in the body params.
Notes:
trackingInfo.trackingNumber and trackingInfo.shippingProvider can be updated but not removed.lineItems, each line item must include an explicit quantity.completed: true.You can only call this method when authenticated as a Wix app or Wix user identity.
There is 1 error with this status code.
This method may also return standard errors. Learn more about standard Wix errors.