(Play Store) How to sign .apk with certs from personal account

I have previously published an app to the Play Store from my personal account.

Now I have changed the app owner to an organization and am trying to publish a new build to the Play Store and I am receiving this error:

You uploaded an APK that is not signed with the upload certificate. You must use the same certificate.

Following instructions from a similar post, I signed into my personal account and ran expo fetch:android:upload-cert, which gave me an upload_cert.pem file.

Now I’m having trouble figuring out how to upload this .pem file to the Play Store. I checked under Release > Set Up > App Integrity but I can’t find a place to upload a cert. Do I need to “request a key upgrade” and email the upload_cert.pem that was fetched from the command I ran?

I’m a little confused with the approach to fix this:

  • Is there some way to replace our organization account’s certs with my personal account’s, then run a new build which would generate a .apk signed with my personal account’s certs, thus matching the one’s in Google Play Store?

  • Or do I need to replace the cert in the Play Store with our organization account’s, so that when we upload the .apk signed with the organization’s cert, it matches?

Thanks in advance.

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