I recently switched to Zoho from QB and I like the simplicity and the price. But after I setup ACH via Authorize.net I noticed that my customer pay for the invoice, I receive the notification from Authorize.net that the invoice was PAID, Zoho detects there is a payment via ACH but it doesn't mark the invoice as PAID.

I contacted support and there response is that it will take 15 days for Zoho to mark the invoice as PAID, there reasoning behind it is that the payment may or may not go trough. Well right now the payment is inside my bank account, Zoho still hasn't marked the invoice as paid and my customer is upset because she received a reminder that the invoice hasn't been paid yet.

If Zoho is detecting that there was a Payment, mark it as PAID immediately or in 24 hours, if the payment don't go trough I will be notified by Authorize.net and I will handle it after that.