Hi,
I'm a developer and I'm trying to connect the square terminal to our POS. I followed guides and I managed to receive a device code to pair the device. When I enter the code into the terminal, it does not accept the code. I'm using our sandbox account. What should we do now?
It's not possible to login to a Terminal device while in Sandbox mode, @Micro_egh.

You would need to generate a device code in production and login, to actually see it login.
More on this here. I hope this helps - and welcome to the Seller Community 👋
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