Native Jetpack installation fails for JCP JN sites

[selanthiraiyan]

Description

Native Jetpack installation fails for JCP JN sites.

Steps to reproduce

Prerequisites

1. Create a JN site.
2. Install WooCommerce
3. Install the WooCommerce payments plugin. You can skip the authorization with the WPCOM account part.

From mobile app

• Log out of the app or skip login onboarding if needed.
• On the prologue screen, select "Log In" or "Continue with WordPress.com" based on the A/B test variant you get.
• Log in with your WordPress.com account.
• If your account doesn't have any associated site, notice that the empty store picker is displayed with the matching design as on Figma.
• Select Add a Store > Connect an existing site.
• Enter the address of your test store and tap Continue.
• You should see a Jetpack error screen from where you can Install Jetpack or Connect Jetpack natively.
• Tap on the Connect Jetpack button, and you will end up in a 404 error screen.

Screenshots

Screen	Image
Start connection
404 error

[pmusolino]

This could be helpful to know for @itsmeichigo (but probably she is already aware of this)

[itsmeichigo]

Thanks for reporting @selanthiraiyan - did you happen to have more information about the error? I.e which request it was? And is the error consistent for your site?

[selanthiraiyan]

• Jaclyn reported this issue during a PR review.
• From the PR description, it looks like this happened for all JCP sites. I don't remember any other details about this.

[itsmeichigo]

Potential cause: p1680512610989549-slack-CBG1CP4EN.
I will test this again after the issue is fixed on the backend.

[itsmeichigo]

The issue has been fixed on WCPay side [p1696626882601429/1680512610.989549-slack-CBG1CP4EN]. I tested and confirmed that Jetpack installation & activation works correctly now.