The app won't accept my bank card information

[REFerguson]

My son put in his routing and account numbers. He tried putting in his bank card information but it won't accept it. What's the issue?

[VanKalkerFarms]

The account linked must be with a bank, not an online only bank.  It must be a transactional account meaning it can give money and have money taken from it.  see this link for more information. https://squareup.com/help/us/en/article/5456-bank-account-frequently-asked-questions