Cannot get fulfillmentPreview to work - says missing parameter [items]. However createFulfillmentOrder does work.

[nickgoodmanuk]

Hi, think may have found a possible bug. I'm using version 1.6.11.

When I try to call getFulfillmentPreview I get a failed response of Parameters missing [items]. However the createFulfillmentOrder call works and this is built up in a similar way.

Doesn't Work :

var fulfillmentpreviewresponse = amazonConnection.FulFillmentOutbound.GetFulfillmentPreview(fulfillmentpreviewrequest);

Works :

var createfulfillmentorderresponse = amazonConnection.FulFillmentOutbound.CreateFulfillmentOrder(createfulfillmentorderrequest);

I have noted the create fulfillment order response is just a boolean, which returns true. It has created the order on Amazon.

POST /fba/outbound/2020-07-01/fulfillmentOrders/preview Operation: getFulfillmentPreview

POST /fba/outbound/2020-07-01/fulfillmentOrders Operation: createFulfillmentOrder

[nickgoodmanuk]

Bump. Will need this or a workaround by March 2024 when the final MWS services are removed and reliant on SP-API. As far as I know fulfillmentpreview is the only way to get estimated fees for Multi-Channel-Fulfillment, not to be confused with FBA estimated fees.

[rubberfashion]

Same issue. Hope for solution soon. Is there any workaround?

[nickgoodmanuk]

Same issue. Hope for solution soon. Is there any workaround?

Not that i've found.

[nickgoodmanuk]

@julianpetriv . Many Thanks, just downloaded latest version and can confirm it now works.