Reject app installation for not verified email

Topic summary

Developer asks how to block a Shopify app installation when the merchant’s email is unverified and show a friendly message prompting email verification.
Seeks confirmation on whether Shopify supports rejecting the install with a custom user-facing message, and requests guidance on how to implement this behavior.
No responses or solutions provided yet; the question remains open and unresolved.

Summarized with AI on December 28. AI used: gpt-5.

How to reject an app installation when email is not verified?

I am developing an app for the Shopify app store. I want to reject the installation when someone is using unverified email address. Is it possible to reject it in such a way that the user will receive a nice message requesting them to verify their email? If so, how to do it?

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