The Cash App keeps improving users experience, and ensure smooth functioning of the Square Cash application. The users can add a bank debit card with Cash App. Once the debit card is linked with Cash App, the users can initiate fund transfer directly from a bank account using Cash App. After enabling the direct deposit, you will receive a routing number, which is a unique ID on Cash App. It is important to inform you here that the users cannot change routing number once it is created. However, if someone wants to change the routing for any reason, then open a new Cash App account and again set up a new direct deposit account number.