Hi:
We have a handful of merchants that we can not POST to /items - getting 401. No problems doing GET and the other merchants are fine.
The app has read/write permissions on everything except employees
Merchants uninstalled and re-installed the app, and authed with oauth flow, so we have new tokens.
Here's one
App ID: 3CQA074T95S6R
Merchant ID: S7SHYX05M360Y