I think this needs to be clarified a bit.

The original question has somehow been forgotten.

It was, essentially, "is there a drop-down list of shipping methods in QuickBooks Online?"

Before I posted to this thread another person responded to the original question by stating that this could be done by going to the Customer and Vendor Profiles List and adding entries to the Ship Via list.

My first post here made the observation that "someone needs to moderate these posts" because that "answer" was completely incorrect because the Customer and Vendor Profile Lists are a feature of QuickBooks desktop, not QuickBooks Online.

An Intuit employee then promptly replied that I was incorrect because there are customer and vendor contact lists in QuickBooks Online.  Hopefully everyone now realizes that the "Customer and Vendor Profile Lists" are not "Customer and Vendor Contact Lists." Moreover, this Intuit Employee's "clarification," even it were remotely on target, has nothing to do with the original question since the QuickBooks Online Customer and Vendor contact lists will not give you a "drop-down list of shipping methods."

Thankfully another Intuit employee chimed in to acknowledge that I was, in fact, correct that the Customer and Vendor Profile Lists are QuickBooks Desktop feature only.

However, this still doesn't really get anything accomplished regarding the original question.

There was no way to have a drop-down list of shipping methods in QuickBooks Online two years ago when this question was originally asked, and there still is no way to get it now two years later.

I may be wrong, but don't hold your breathe waiting for Intuit to add this (even though it seems like it would be super simple and easy to do). I think this functionality is very, very low on the list of priorities for changes to QuickBooks Online, if it is even on the list at all.

My opinion, but QuickBooks Online lacks numerous features that product-focused businesses really need to manage the activities that sales of products involve. It appears that Intuit has made a conscious decision to let those kind of features be provided by add-on apps with QuickBooks Online serving as a back-end accounting system.