What EXACTLY do I need to enter inventory via scanner?

[lasboosters]

I have square terminals for my concession stands. I would like to use a scanner to receive my inventory, but before I proceed, I need to know EXACTLY what additional components I will need.

Thanks in advance.

[JustinC]

Receiving stock with a scanner is a feature with Square for Retail which requires a subscription. Learn more here. 

@lasboosters