Technical Tip: Register License with 'Invalid input data: - Support coverage expiration date is beyond the EOS date'

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Description	This article explains why FortiGate/FortiWiFi gets the above error message:
Scope	FortiGate, FortiWiFi.
Solution	The error message indicates that the registered device expiry date is beyond the hardware End of Support Date (EOS). The hardware Product Life Cycle is available at https://support.fortinet.com/Information/ProductLifeCycle.aspx Users can contact Fortinet Sales to resolve this issue.