I cannot install my custom app on my production store after deploying it to heroku

[alfredafutu]

After building my custom app and testing it on my development store, i went ahead to deploy it to heroku. After the deployment on heroku, i generated the install link on my partners dashboard but when i try to install the app using this link i get the message in the screen shot: 

I would be glad if someone points me in the right direction to solve this as i am on a tight schedule to get things up and running.

Thanks

[ashukasma]

You can create another custom app and utilise same API credential into this app, It will solve your problem.

[alfredafutu]

You mean to create another custom app in my partners dashboard and use the credentials of the problematic app in the new app?

[tolgapaksoy]

You need to contact the developer of this application. Your Heroku app URL needs to be whitelisted by the app developer like this:

Your Heroku URL should be in that redirection URL whitelist.

[alfredafutu]

@tolgapaksoy The heroku app url is already whitelisted as seen here

[tolgapaksoy]

Well something is 100% wrong in your whitelist URLs.

You most likely are missing the redirect:

https://ping-rider.herokuapp.com/shopify/auth/callback

[tolgapaksoy · Accepted solution]

 You have a double / in your app redirect. You might have configured your Heroku App URL in your .env file with a trailing slash at the end.

[alfredafutu]

@tolgapaksoy that was the issue. I configured my host url env variable with a trailing slash. You just saved me going crazy