Pushkit: How to create an app identifier for complication pushes?

In the session "Keep you complication up to date" (https://developer.apple.com/videos/play/wwdc2020/10049/), they explain how to create a proper certificate for your complication pushes (at min 16:55)

They explain that you would have to create an app identifier with your bundle identifier and ending in watchkitapp.complication (example: bundleId.watchkitapp.complication).

If I want to create such an app identifier, I get the following error on the developer portal ({bundleId} is a placeholder for the actual bundle id):

An attribute in the provided entity has invalid value
An App ID with Identifier '{bundleId}.watchkitapp.complication' is not available. Please enter a different string.


Does anyone experience the same? How to fix this?
Just use universal push key instead of separate id with certificate. And send to {bundleId}.watchkitapp.complication in topic and set apns-push-type to complication. More info:

https://developer.apple.com/documentation/usernotifications/setting_up_a_remote_notification_server/sending_notification_requests_to_apns
Pushkit: How to create an app identifier for complication pushes?
 
 
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