By default, any Prepayments you receive from a Client in Service Autopilot will be reflected in the client's Account Balance. In that case, if a Client has made a Prepayment for a certain Service but has outstanding Invoices for other Services, the Account Balance would still show a credit. If you prefer to keep prepayments separate, you can change this setting by using the following steps:
- Go to Settings > Company Information.
- Click the Settings tab.
- Un-check "Include Prepayment in Client Balance".
- Click Save Changes.
Even with this option de-selected, Credits and over-payments can still give a Client a negative balance but Prepayments will remain separate.