How to detect message sent from another device but same account as whatsmeow about whatsmeow

[JustSoursop]

You can check the Device ID in incoming message event, events.Message.Info.Sender.Device. The JID would be seen like this 1234567890:<ID>@whatsapp.net.

"The Device ID always increases whenever we pair a new device. If the Device is 0, it means it is sent from the mobile app where our phone number was originally registered."

Ref :

whatsmeow/types/jid.go

Lines 54 to 62 in 01b0547

	// Regular JIDs can be used for entities on any servers (users, groups, broadcasts).
	type JID struct {
	User string
	RawAgent uint8
	Device uint16
	Integrator uint16
	Server string
	}