Steps

Add Client

Send Quote to client

Convert accepted Quote to invoice

Raise invoice to clients

Invoice Approver approves invoice

Approved invoice emailed to client

Client accepts invoice through Accept/Decline links in the email

Payment

Client makes payment through Payment link in the email.

Immediately the Payment Received status is updated in the system.

Or

Payment Receipt is noted in the bank and manually updated in the system.

Client receives Acknowledgement email