Troubleshooting Tip: FortiClient Zero Trust Telemetry error 'The invitation code expired'

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Description	This article describes how to resolve an error 'The invitation code expired' that shows on FortiClient when attempting to connect FortiClient Telemetry with FortiClient EMS by using an invitation code.
Scope	FortiClient v7.0, v7.2., EMS (on-prem and Cloud).
Solution	After entering the invitation code, FortiClient Telemetry is unable to connect to EMS and throws the error 'The invitation code expired' as shown below: To verify, check the output of the following FortiClient command: diagnostic debug log -ESNAC log [2024-08-22 00:34:07.9308220 UTC+08:00] [4872:4868] [FortiESNAC 142 info] Connecting to x.x.x.x:8013 [2024-08-22 00:34:07.9387702 UTC+08:00] [4872:4868] [FortiESNAC 122 debug] The SSL session was re-used [2024-08-22 00:34:07.9389767 UTC+08:00] [4872:4868] [FortiESNAC 78 debug] Saved new SSL session [2024-08-22 00:34:08.1098333 UTC+08:00] [4872:4868] [FortiESNAC 629 debug] REPLY=FCREGRPLY: REG|10|AUTHTYPE|0|ERR_MSG|The invitation code expired| [2024-08-22 00:34:08.1117861 UTC+08:00] [4872:4868] [FortiESNAC 615 info] function called [2024-08-22 00:34:08.1120040 UTC+08:00] [4872:4868] [FortiESNAC 676 error] Failed to register to EMS: The invitation code provided has expired Checking the Invitations section of the EMS GUI will show that the desired invitation code has expired. To solve the issue: Edit the desired invitation code to uncheck the Expiring and select Save. Copy the invitation code, which can be used by FortiClient to connect to EMS again. FortiClient Telemetry should connect to EMS successfully.