Getting bellow error The redirect_uri query parameter value is invalid. Make sure it is listed in the Redirect URIs section on your app's keys tab and matches it exactly.

QuickBooks Online can integrate to a number of third-party applications, sujitkumarjana.

With that said, the integration process requires mapping of fields between the two programs. If you encounter errors during the integration, I'd recommend reaching out to the third-party app's support team. They can give you options on how to get the integration successful.

Aside from that, you can also visit the Intuit Developers page. We have engineers, developers, and other QuickBooks users that might also be using the app you have. You check other posts related to this or create one.

1. Go to this link and select QuickBooks Online: https://help.developer.intuit.com/s/.
2. Click Ask a Question and enter the details of your concern.
3. Click Ask.

Let us know how this goes if you have additional queries regarding the process.

Hello,

Thanks for your reply.

We have created an APP in my quickbooks portal. Now I want to connect that APP with PHP. Please suggest me what to do, so that I can connect successfully and use the APIs.

Thanks

Hello there, @sujitkumarjana.

Let me route you to the best support team to answer your integration concern. 

QuickBooks has a separate public forum wherein it specializes in Application integration and other enhanced program-related topics such as connecting API with PHP. I'd recommend posting this specific concern to this page: https://help.developer.intuit.com/s/.

If you're not yet registered to this forum, you may click on the Sign in button and Create Account. This is how it looks: 

You can click on the Help button and post your concern there, someone from developers team will answer you with the details you need.

I'll be here if you have other QuickBooks-related questions as long as it's not about API or APP integration. Please know that you're always welcome to tag my name in the comment section. Take care.