Unable to chat with external user from skype for business

[Sijo Devassy]

HI Team,

I have skype for business id and able to chat internally in the same domain but we are not able to chat with external users it's getting the message as " The action couldn't be completed. please try again later."

I want to let you know that what settings is necessary from my side to make the change in my skype for a business chat for external client or domain.

Please help!

[#2]

Hi,

If you are running Skype for Business Online check that External Access is enabled in Office 365 admin Center (go to Admin Centers > Teams & Skype > Legacy portal), choose Organization > External communications. The setting should be  On except for blocked domains or On only for allowed domains. 

https://docs.microsoft.com/en-US/MicrosoftTeams/let-your-teams-users-communicate-with-other-people?W...

If you are running Skype for Business On-Premises it is a larger span of potential problems, there could be a setting like a External Access Policy that denies external communication, it could be network issues for Edge servers or maybe federation is not activated.

https://docs.microsoft.com/en-us/skypeforbusiness/deploy/deploy-skype-connectivity

[#3 · Accepted solution]

Hi Linus,

Thank you for your quick response. I have followed up with below steps and able to communicate with external users.

Thank you very much.