Unable to apply for YDMP license due to unverified machine-Id

[jolouis]

The YDMP is primarily managed through the reseller network and their associated management contacts. If you reach out to whomever you purchased your phones from they should be able to set you up with additional licenses and a support contact for the platform itself.

Alternatively open a support ticket as the ticketing system is far more properly managed and maintained than the forums. (Yealink leaves these as "Community forums" and while they have staff that drop in now and again the majority of the time all those members do is say "Open a ticket"). Most of the detailed responses/answers here are delivered by other users/peers.