Import a Postman Collection into MS Custom Connector

I’m trying to set up a custom connection in the Microsoft Power Platform. I’ve tested my API in postman desktop, and it works.

I exported it and imported the resulting file into a Custom Connector using the “Import Postman collection” option.

I have the code disabled and the API key entered.

When I go to test, it says Validation Successful, but when I run the test I get:

Operation failed (404), see response below.

The header says:
“date”: “Wed, 26 Jan 2022 20:45:31 GMT”,
“x-ms-apihub-cached-response”: “true”

Where do I begin to troubleshoot this connection?

I figured it out. I was using the access token created in TSheets instead of the full OAuth 2.0 process. I created a new custom connection with OAuth 2.0 and it worked. I joined the Intuit Developer community since the applications I am trying to connect with are TSheets and QuickBooks.