Our app was developed and published by a 3rd party vendor. Now I've got an email from Apple said "Action Needed: Apple Push Services Certificate Expires in 30 Days" with instruction as
"Download your certificate to your Mac, then double click the .cer file to install in Keychain Access. Make sure to save a backup copy of your private and public keys somewhere secure."
which is unclear to me.
What should I do?
Here is the email which ask for generating a new cert.
Your Apple Push Services Certificate will no longer be valid in 30 days. To generate a new certificate, sign in and visitCertificates, Identifiers & Profiles.
Certificate:Apple Push Services
Identifier:com.relianceco.cma.uppergrand
Team ID:7P24UW6N8U
To learn more about expired certificates, visit thecertificates support page.
Best regards,
Apple Developer Program Support
