Multiple devices with same authentication and one template

I want help to make my project.
Basically I want to use two esp32 with different sensors and separate virtual pins , separate code
But authentication token should be same so that both esp32 should be seen in one template only.

It won’t work. The Auth token needs to be unique for each device that’s connecting to the Blynk server.
If a second device tries to connect to the server then the connection to the first device will be terminated first.

I think you mean one dashboard, not template.
To achieve this you need to send data from a ‘slave’ device to the master device. You can do this with Automtions, or in a variety of other ways.