This is the actual Task that I'm using
task: AppStoreRelease@1
displayName: 'Publish to the App Store TestFlight track'
continueOnError: 'true'
inputs:
apitoken: '$(AppStoreConnectApiKeyContentBase64)'
appType: 'iOS'
serviceEndpoint: '$(APPLE_APP_STORE_SERVICE_CONN)' # The Azure service connection
appIdentifier: $(APPLE_APP_STORE_APP_ID)
ipaPath: './ios/*.ipa'
appSpecificId: secret
releaseTrack: 'TestFlight'
shouldSkipWaitingForProcessing: true
shouldSkipSubmission: true