guest -> t`cn/E2t5zCO
accept -> https://teams.microsoft.com/l/team/19%3adc2e6863ec814704a53334ab3ea07e9d%40thread.skype/conversations?groupId=09ad737f-29db-4821-89b1-9ab1e3ace58f&tenantId=92246c25-ecbf-47fe-b266-8e0257b25a8d