How to Set Up a Second Pre-Due Payment Reminder in WHMCS?

[AndresLZ]

Hi WHMCS Community,

I'm looking for a way to set up a second payment reminder for invoices in WHMCS before their due date. Currently, WHMCS seems to support only one pre-due reminder. My goal is to send an additional reminder to improve payment rates.

Questions:

1. Does WHMCS have a built-in feature for multiple pre-due reminders?
2. Can this be achieved with a custom PHP hook or a module?
3. Has anyone implemented this and can share insights or code?

Any guidance or links to resources would be really helpful.

Thanks!

[Saroha]

Yes, You can do this with the custom hook run on daily cron jobs,

but for this, you need to create a custom hook to fetch all unpaid invoices using local API GetInvoices.  Then compare the due date as per your requirement then send invoice using SendEmail local API