Technical Tip: FortiClient telemetry not automatically connected to EMS v7.4.1 on-prem after complete installation

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Description	This article describes how to resolve an issue when FortiClient telemetry is not automatically connected to EMS v7.4.1 on-prem after completing the installation. When creating the FortiClient installer package by following the admin guide Adding a FortiClient installer, and downloading the installer from the created link, FortiClient does not automatically connect to the EMS telemetry after completing FortiClient installation on the endpoint machine. Checked FortiESNAC log shows the error message below 'Failed to register to EMS: An invitation code is required to register to this EMS': [2025-01-16 11:45:27.5772857 UTC+08:00] [8488:8492] [FortiESNAC  111    info] Sending and Receiving from x.x.x.x:8013 [2025-01-16 11:45:27.5775014 UTC+08:00] [8488:8492] [FortiESNAC  260    info] Connecting to x.x.x.x:8013 [2025-01-16 11:45:27.5807308 UTC+08:00] [8488:8492] [FortiESNAC  252   debug] The SSL session was re-used [2025-01-16 11:45:27.5808560 UTC+08:00] [8488:8492] [FortiESNAC  94   debug] Saved new SSL session [2025-01-16 11:45:27.8347360 UTC+08:00] [8488:8492] [FortiESNAC  637   debug] REPLY=FCREGRPLY: REG|8|ERR_MSG|An invitation code required| [2025-01-16 11:45:27.8347656 UTC+08:00] [8488:8492] [FortiESNAC  226   debug] misssing invitation code [2025-01-16 11:45:27.8347768 UTC+08:00] [8488:8492] [FortiESNAC  228   debug] error message set: An invitation code is required to register to this EMS [2025-01-16 11:45:27.8358822 UTC+08:00] [8488:8492] [FortiESNAC  645    info] function called [2025-01-16 11:45:27.8359364 UTC+08:00] [8488:8492] [FortiESNAC  684   error] Failed to register to EMS: An invitation code is required to register to this EMS [2025-01-16 11:45:28.1997372 UTC+08:00] [8488:8492] [FortiESNAC  161   debug] Endpoint state: Registration Failed
Scope	EMS on-prem v7.4.1
Solution	In the previous EMS version, there is an Invitation field to select the invitation code during the creation of the FortiClient installer package. Refer to: Technical Tip: How to send email notification which contains FortiClient installer package Now in EMS v7.4.1 on-prem, there is no Invitation field in the FortiClient installer package creation section. For the EMS v7.4.1 Cloud instance, the Invitation field setting in the FortiClient installer package remains the same. Thus, to ensure the endpoint machine is automatically connected to the EMS on-prem upon completing the installation, the FortiClient installer must be created in the Invitation section to include the FortiClient installer by following Invitations guidelines.