1. Sign up to Apple Developer programme and pay the enrolment fee of $99
https://developer.apple.com/programs/enroll/
Once you have completed the sign up it may take a few days for Apple to accept your membership before you can complete the remaining steps below.
2. Invite [email protected] to the account with Admin access.
3. Login to https://appstoreconnect.apple.com/access/integrations/api (It can take time for the page to load)
4. Make sure your on Integrations tab
5. Select App Store Connect API
6. Select Team Keys
7. Create a new key by clicking the +
8. Give it a name e.g. CoachKit and Admin access and click Generate.
9. Make sure you download the file and copy the key and contact [email protected] who will provide a secure link to upload the credentials too.