Hi there, gavrachbrown.

Let me get you to the right support team that currently handles QBO API concerns.

We have Developers Team that is expert in handling QBO API app integration. They can help find a third-party application that can send payment requests to your QBO.

Here's how you can reach them:

1. Visit this link: https://developer.intuit.com/app/developer/homepage.
2. Scroll down, at the bottom click Contact us under the Intuit column.
3. Select a topic from What do you need help with?
4. Click As a Question and follow on-screen instructions.

You might also want to visit our QuickBooks Online learning guides for tutorials and webinars about the product.

If there's anything I can help you with, just let me know by leaving a comment below or post again. Thank you and have a great day ahead.

@gavrachbrown 

What kind of in-house system did you build? A webstore or else?

It's a back-end system for our consignment shop.  The only need is to add an integration so that when a consignor requests payment, we send a file to QBO for the payment (or we run a job weekly to collect them all).  But the question is directly for Intuit, as I want to know if the $1200 government grant for digital adaptation can be used for the build of something like this.

Hi gavrachbrown,

I agree with Charies. We'd recommend contacting the Intuit Developers Team to get more information about building an integration for customers. They're the best support that can provide more information about the process for API integration in QuickBooks Online.

Let us know if you need more help. Have a nice day!

Thanks.  I thought that this is what I was doing.  I was directed here by Quickbooks support and I got to here from the contact us link on the Intuit Developer page.  So how do I contact them?

@gavrachbrown 

You may explore these connector as workaround.

https://automate.io?ref=quickbooks

https://www.integromat.com/?pc=quickbooks

Let me know if your in-house system uses a specific database/data warehouse platform that is not supported by those connectors. I can recommend other connectors to explore.

Hi gavrachbrown,

Make sure to follow the steps below on how to contact the Intuit Developers Team.
 

1. Visit this link: https://help.developer.intuit.com/s/.
2. Scroll down, and click on Contact Support button.
3. Click Sign in if you have an Intuit account, if not click Create Account.

If you're not log in, or don't have an Intuit Account you'll have to create an account using your email through Intuit Account Manager https://accounts.intuit.com.

Then, go back to the Intuit Developers website and submit a ticket.

Don't hesitate to post in the Community if you have any questions.