Trial Version Extension BundleId

Hi everyone,

we are currently building a trial version for our paid Premiere Pro extension. 

What we've found out so far, following the documentation in this thread: "https://community.adobe.com/t5/exchange-discussions/creating-a-trial-extension-for-adobe-exchange/m-p/9546203" is, that "The bundle ID of the trial product must match that of the paid product. For example, if the paid bundle ID is “com.mycompany.myproduct”, the trial bundle ID is also “com.mycompany.myproduct”.".

We've followed this approach. However when uploading the trial using the "Create New Trial" feature in the Partner Portal, we are getting the error message "Another product already exists with bundle ID: ...". This somehow contradicts the above. What would be the correct approach to create a trial version? Creating another trial with bundleId "com.mycompany.myproduct.trial" and submit this one?

Would the Creative Cloud Desktop Client then handle the upgrade  (uninstalling the trial) or would this mean that two plugins (trial and full version) are both installed at the same time?

Thanks a lot for your Help,

Chris