If your validation code is rejected, it is often due to hardware changes. License: Basics - Entitlement ID - EPLAN Help
: Licenses can be "returned" to the cloud and activated on new hardware much more easily using the EPLAN Rehost tool . eplan electric p8 19 validation code better
: Unlike the validation code, which was strictly tied to a physical dongle, the EID connects directly to your computer or server via the cloud. If your validation code is rejected, it is