Why is SCA verification happening when I’m in the USA?

[SHRNSBG]

A customer is not able to make an online purchase because Square is saying SCA verification required. What do I tell her?

[Gold]

HI, hopefully this Square Support page will help.

https://squareup.com/help/gb/en/article/7373-strong-customer-authentication-faq

[SHRNSBG]

But I’m in the USA and so are all my customers. The SCA is a European thing. 

[ColorShop]

Ive also recently experienced this., a customer let me know.  i feel like its a glitch in the system, I tested it with my own card. The card wasnt accepted until i logged out (of being a customer) and checked out as a guest. 

Really hope this isnt effecting my other customers!