How to access shifts of a team? "Sorry, the team was not found, or you may not have access to it" - microsoft-graph-api

Question

I would like to read a team's shifts using https://graph.microsoft.com/v1.0.
However i always fail with different errors and get contradicting server messages.
I send the API requests with Postman.
I am using Application authorization method. I think i have set all required Api permissions for my app.
I beleive i supply the correct headers, like:
Authorization
Content-Type
MS-APP-ACTS-AS
When i send the request like this to GET a team:
GET https://graph.microsoft.com/v1.0/teams/{id}
i get the following error message:
"error": {
"code": "NotFound",
"message": "No team found with Group Id {id}",
"innerError": {
"date": "2020-09-05T08:37:17",
"request-id": "id"
}
}
But when i try to create the team (from a group) like this:
PUT https://graph.microsoft.com/v1.0/groups/{id}/team
I get the error as follows:
"error": {
"code": "Conflict",
"message": "Team already exists",
"innerError": {
"date": "2020-09-05T08:33:33",
"request-id": "id"
}
}
When i try to make my actual call of interest, like:
GET https://graph.microsoft.com/v1.0/teams/{id}/schedule/shifts
That also fails with error:
{
"error": {
"code": "NotFound",
"message": "{\"error\":{\"code\":\"NotFound\",\"message\":\"Sorry, the team was not found, or you may not have access to it.\",\"details\":[],\"innererror\":{\"code\":\"TeamNotFound\"}}}",
"innerError": {
"date": "2020-09-05T08:59:55",
"request-id": "id"
}
}
}
Pleaset help me understand what i am doing wrong!
Thank you in advance!

Answer 1

Solved (itself).
So what was happening:
i created a team (directly or from a group).
created a schedule for the team.
get the schedule for the team, and see the response:
"enabled": false,
"provisionStatus": "Failed", (so not running or queuing or something)
"provisionStatusCode": "GraphResourceNotFound",
struggle few (like 4-5) days
without changing a thing, get the schedule showing:
"enabled": true,
"provisionStatus": "Completed",
"provisionStatusCode": null,
Maybe it would help others to see the possible wait time length or add a clarification about the provisionStatus field’s status progression.