Update rooms-licensing.md

Added a note in troubleshooting section

Switching from legacy licenses Teams Rooms Standard or Teams Rooms Premium to Teams Rooms Basic or Pro, license provisioning could take up from 24h to 48h to be active.

Teams/rooms/rooms-licensing.md

@@ -210,6 +210,7 @@ If you encounter devices showing an incorrect “unlicensed” status even thoug
 - For MTR-W devices, consult our documentation page on and follow the steps [here](/microsoftteams/troubleshoot/teams-rooms-and-devices/teams-rooms-resource-account-sign-in-issues) that outline how to sign in properly. 
 - For MTR-A devices, kindly open an incident with the TAC team to ensure that the correct account information is sent to the service. 
 
+**Note**: Switching from legacy licenses Teams Rooms Standard or Teams Rooms Premium to Teams Rooms Basic or Pro, license provisioning could take up from 24h to 48h to be active.
 
 ## Assigning additional licenses: