Hi,

I have a problem with teams, some users can chat with external contacts while others are not allowed to the same contact. what can be wrong then?

7 Spice ups

Is it a group that was created in SharePoint that only allows internal communication while the others are part of an external one?

1 Spice up

I have not created a group in SP. Where do I find this settings?

This should be helpful: Customize SharePoint site permissions - SharePoint in Microsoft 365 | Microsoft Learn