Sorry, I don’t see any way to actually make this use case work. There isn’t any prepaid functionality visible in the portal so I’m trying to figure out a workaround.
I tried posting CDRs and then generating an invoice, but it’s not finding any “debits”. Should I be posting one-time transactions myself to the account via an API every day?
Usage for 2019-01-28 $1.23
Usage for 2010-01-29 $5.23
I don’t see how that would trigger anything automatically based on the remaining balance in their account though.
I could also maintain the usage/balance on my end as I do now and just use Sonar to generate a $100 invoice and send to the customer, but then Quickbooks could do that too (minus the Avalara integration).