Unexpected 401 Failed to pack result on GET calendars list

[devind (Devin)]

Format Your New Topic as Follows:

API Endpoint(s) and/or Zoom API Event(s)
Link the API endpoint(s) and/orZoom API Event(s) you’re working with to help give context.

Zoom Calendar API

Description
Details on your question, workflow or the problem you’re trying to solve.

Trying to retrieve a user’s calendar list but received the following 401 unauthorized response that is unexpected:

GET https://api.zoom.us/v2/calendars/users/me/calendarList

Error?
The full error message or issue you are running into, where applicable.

{
  "error": {
    "code": 401,
    "errors": [
      {
        "appCode": 0,
        "domain": "global",
        "message": "Failed to pack result",
        "reason": "unauthorized"
      }
    ],
    "message": "Failed to pack result",
    "reqId": "ZMAIL_8f93440741a0b863e6873384500dcb3c",
    "status": "UNAUTHORIZED"
  }
}

How To Reproduce
Steps to reproduce the behavior:
1. Request URL / Headers (without credentials or sensitive info like emails, uuid, etc.) / Body

GET https://api.zoom.us/v2/calendars/users/me/calendarList

2. Authentication method or app type

Bearer token is set in the Authorization Header

3. Any errors

See above section

[devind (Devin)]

This appears to be because the user’s account did not have a zmail account configured. Once it was configured the API request went through as expected.

[elisa.zoom (Elisa)]

@devind
Thanks for sharing your findings with the community!