Linkage Parameter Issue

Check your setting according to the following items
- Client id & Client secret's value are correct
- SDK’s version is up-to-date
- Login account has the access to main function
- Login account has the access to application
- Callback url has set correctly

When you are troubled accessing application, please contact application operating company.
Sincerely yours,

Is the Callback URL and REdirect URI are the same? If the callback URL is different the where can I set the callback URL?

Yes, they have the same meaning.

I have mentioned the store URL as Redirect URI. Or what can be the REdirect URI? And what will I mention as the app URL?

I am using the Shopify auto linkage application to connect the Shopify inventory with next-engine, After filling the details it's generating a store token, what is the use of that token.

>I am using the Shopify auto linkage application
if you are talking about this application ( https://base.next-engine.org/apps/479/detail/ ), I'm afraid i won't be able to support you.
again, please contact application operating company.

Thank you for the support
Is there any mail ID to contact the application operating company?

I’m happy to help
See the link below for the contact info
https://base.next-engine.org/apps/479/detail/

Sincerely yours,