Dashboard: Item Friendly ID
In the SDK the Friendly ID is referred to as Alternate ID. In the dashboard it's only Friendly ID. You should decide for a name and stick with it. Currently it's guesswork.
SDK: Item AlternateID
AlternateIds is a list. In the dashboard it's a field with only 1 entry, with apparantly no way to add a second. It should either not be a list or the dashboard should reflect that it's a list.
I don't quite see the point of having multiple alternate IDs. I'd strongly prefer a simple string instead of a list.
Quickstart: Search items
The quickstart should explicitly mention that SearchItems() is the way to get your catalog items. Most users will migrate from Economy v1 and the first thing you did there was to get the catalog. Step 3 in the quickstart talks about publishing an item, which isn't interesting at that point.
