Add external access for Lync
18-May-1313 Leave a comment
When trying to make a Lync IM
When contacting your support team, reference error ID 1002 (source ID 243). Troubleshooting information is available online, including best practices for using Lync.
In Office 365 Plan E3
- Lync Admin Center
- Organisation
- External communications must turn this on
The other organisation must also have this setting on:
This message wasn’t sent because <recipient>doesn’t have permissions on your organization’s network, or because the address is incorrect. Please contact your support team.