Sending "Non-trackable tracking numbers" feature should be on store level basis and not a Global setting
This feature which is located in International settings ( don't know why since it also applies to domestic shipments) should be selectable on an individual marketplace level basis.
We ship a lot of merchandise via First Class letter mail. First Class letter mail generates an Intelligent Mail Barcode whichShipstation treats as a non trackable tracking #. Amazon permits this level of service with "no tracking" on orders under $10. We don't want this "non trackable" number sent to Amazon because they send this number to the customer which results in numerous emails ( customers complaining tracking number doesn't work etc ) and because Amazon keeps track of delivery statistics and none of these shipments will ever track as delivered.
However,we do have other marketplaces where we want the non trackable Imb sent (marketplaces that require some sort of tracking/reference # to complete shipment but don't keep delivery statistics etc.. (ie, Walmart). So while we need this feature in some marketplaces we don't want it applied in other marketplaces. Presently it is only selectable on a "all or nothing" global level basis.
We should be able to enable/disable this on a marketplace level.
First Class letter mail with no tracking enabled should not generate a non trackable reference number to be sent to Shopify via the API, or any other channel. Please fix this issue.