'Resource.MEMBERSHIP_BY_ACTIVITY' is obsolete: 'Unused once obsolete routes are removed'

Non-nullable property 'Instance' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

Non-nullable property 'ClientId' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

Non-nullable property 'TenantId' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

Non-nullable property 'Audience' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

Possible null reference assignment.

Possible null reference argument for parameter 's' in 'DateTime DateTime.Parse(string s)'.

Possible null reference assignment.

This async method lacks 'await' operators and will run synchronously. Consider using the 'await' operator to await non-blocking API calls, or 'await Task.Run(...)' to do CPU-bound work on a background thread.