How to issue APN certificate key(.p8) and upload

1. Go to Apple Developer account site.

https://developer.apple.com/account

2. Click "Program Resource" > "Certificates, Identifiers & Profiles" > Key

3. Issue certificate key after entering "Keys" menu in left side bar.

4. Enter "Key Name" and activate Apple Push notifications service(APNs)

5. Check "Key ID" and Download key file.

👊 You can download certificate key only once, so you should save key file carefully.

6. Check your "Team ID" in membership page

7. Upload APNs key file.

Upload APNs key file with key ID and team ID.

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