Is it possible to allow this link to work even without a portal account? Just to make the payment and nothing else. Not even all invoices just the invoice that the link is on?
Technically, probably, though the API is most likely. No idea if it holds up, but here’s what I would do:
I copied and edited this from the client’s portal login link. No idea if it will work with your settings etc.
INVOICEID - Syncro’s Invoice ID. Ex: 30836323 an ID, but the Invoice Number could be 6009.
KEY - Whatever that key is.
There’s probably a better way haha.