You can "Invoice" a Client, which means send them a request for payment, using TIDY.
Anytime you complete a job, you can send an invoice to a customer. Here is what happens when you send them an invoice:
Invoices look great and let clients easily pay in the ways of your choosing, including via credit card. Accepting Credit Cards
Customers can view the invoice from their client hub or email. You can view it inside the client's profile in your TIDY for Pros app. Client on the client's profile, then.
If you need to cancel invoices, you can also do this here.