Activate Exposure Notifications for 2 apps

I downloaded the UK and DE corona tracker apps and thought, I could use them parallel. But this is not possible, I have to chose, which app is allowed to use the data and there is no exchange between the apps like in the transnational exposure logging.
Why is it not possible, to have to apps connected to the exposure notifications. Especially when traveling this would be great so you can exchange codes with people from different countries and in case of an infection users of both apps can be notified.
thanks
irene

Answers

Are you developing an EN app? If so, we can provide some guidance on how to handle travel situations.
In that case please reach out to your contacts for the EN project directly and we'll provide help.