Transaction size limits
Transaction size limits let you specify transaction sizes you want to allow for a given card or card group. If you set a range like $200 - $300, all transactions smaller or larger than that range will be declined. This is great for subscription payments where you don't want a merchant to charge you a different amount than you agreed to.
Utilization limits
These let you specify limits on how much can be spent on a card over a given period of time (day, week, month, quarter, total).
How to add per transaction and utilization limits to a CARD
Go to the cards page
Click on a card
Click on "Edit card limit" on the bottom of the "Limits" section above "Transactions"
Toggle the "Transaction range" or "Utilization" sections on
Select the limits you'd like to add
Click "Save changes"
How to add merchant and merchant category restrictions to a CARD GROUP
Visit the card groups page by: