Encountering "[403] Invalid authorization token." Error in Wix and Coda Integration on Make.com

I am currently working on setting up a trial integration between Coda and an unpublished Wix site to synchronize stock quantity and price information only. Following the instructions on the relevant page, I created an app from scratch, granted CRM permissions, and established a connection.

However, when attempting to create a scenario, I continuously encounter a “[403] Invalid authorization token.” error in the collection ID section. This issue persists even when I try to create scenarios for updating products instead of updating collections.

The app I created on Wix is still in test mode and only has the necessary permissions enabled. What steps should I take to resolve this error? Any guidance would be greatly appreciated.