How do I set a monthly spending limit?
Hi, here are the steps,
How to set spending limits for Apple Card Family participants
Note: there is no step 4, please disregard.
When a spending limit is set, the participant can't spend more than the specified transaction limit on an individual transaction. They can still spend up to the credit limit on the shared Apple Card account with multiple purchases, as long as each purchase is below the transaction limit. The account owner or co-owner can also lock a participant's spending or remove the participant from the shared Apple Card account.
Here is the link to the entire support article,
I hope this helps.