Hello,
After days of hard work, I managed to define a custom connector MSGraphCustom in PowerApps to read application sign-in data from MS Graph. When I call the connector with this function only the response table head is shown, no data is collected in SignInsLoc:
ClearCollect(SignInsLoc;Defaulttitle.MSGraphCustom({'$top':10}))
When I monitor my apps behaviour, the response body shows exactly the data I am looking for:

How can I make this data available in a PowerApp collection? Thanks in advance!