I’m experiencing an issue with the client credentials OAuth flow for a custom app I created in the Dev Dashboard in my Partner Organization. The app installs successfully to a production merchant account (not in my Partner Organization) but the token request fails. Setup Details: App created in: …

I just read this topic: Installing custom app - #8 by Tiwa_Ojo . If I understand correctly, client credentials authentication only works in these scenarios: A Partner Organization app authenticating to a dev store in that same Partner Organization. An merchant owned app authenticating to a product…

Hey @Symphiq_Integrations , It looks like your understanding of the client credentials is correct. To my understanding, a Partner Org app authenticating to a prod store via client credentials can only be done if the user is a collaborator with a Developer role. See this comment for more info. My ap…

Thanks. So, the shopify docs ( Using the client credentials grant ) say this: Client credentials is only available for apps developed by your own organization and installed in stores that you own. Public or custom apps must use token exchange or authorization code . This statement is confusing to m…

I have to say this whole change from the old custom apps has been handled very poorly. The comms around it was almost non-existent and the docs around what to do instead are terrible. I work with a lot of partners through our partner dashboard, but I’m not able to install the app on any of their sto…

I was also struggling with this error bout found a solution. If you want to use custom app on paid store, not dev store, you need to implement token exchange (for embedded app) or Authorization code grant (for BE apps) as described here: About token acquisition Simply Using the client credentials g…

Client credentials oauth flow from partner app not working

Authentication & Access

Tiwa_Ojo January 2, 2026, 3:34pm 5

Hey @Symphiq_Integrations,

Check the following comment. Perhaps the issue with client credentials might be related to developer access to the store.

Topic		Replies	Views
Client Credentials Grant returning "app_not_installed" error despite app being installed Authentication & Access oauth	1	179	April 23, 2026
Custom App Credentials Dev Platform	10	1958	January 13, 2026
Using the client credentials grant 403 Error Authentication & Access oauth	5	117	February 5, 2026
Installing custom app Shopify App Store app-store	26	1521	December 4, 2025
Dev Dashboard: limitations for custom app developers Dev Platform dev-dashboard	3	243	February 27, 2026

Client credentials oauth flow from partner app not working

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