When you have the certificate you can sign the macOS PKG. cer file and double-click it to install it in the Keychain Access on your macOS. Upload the certificate signing request (.csr) you created earlier and continue.Then navigate to Certificates, Identifiers & Profiles and click the + symbol to create a new certificate.
Please note that creating a Developer ID installer certificate requires Account Owner/ Holder permission. Go to the Apple Developer portal > Account and sign in.csr (certificate signing request) on your computer. User Email Address: your email address used with the Apple Developer account.From there, open the Certificate Assistant and the option Request a Certificate From a Certificate Authority. Go to Keychain Access on your mac ( /Applications/Utilities).If you don't have the certificate yet, follow the next steps: You can sign packages for macOS with the same certificate until it expires. To sign a PKG, you need an appropriate certificate obtained from an Apple Developer account. The PKG must be signed with a Developer ID certificate to verify that it is from a trusted source.The package must be built as a product archive (built with the command productbuild).PKG must meet two requirements to deploy them on managed macOS devices with GoTo Resolve MDM:
