How do you use pre-auth with restaurants on iPad

[rustifer]

Just setting up square for restaurants and was told you can pre-auth a card if using iPads but I don’t see the option so far

[VanKalkerFarms]

https://squareup.com/help/us/en/article/7949-pre-authorization-for-bar-tabs

hopefully, this has info.  You would need to be part of the beta to use it.