The shortcut must be run through the share sheet, while viewing an auction in Safari. So you can’t be in the ebay app on your iPhone or iPad, you must be viewing the auction through Safari!
The first time you run the shortcut, Google is going to want to verify your identity, from there on out you should be good to go.
This does not work with Buy It Now listings.
The reason I went to all the trouble of adding the auction end to my Google Calendar instead of the easier path of just adding it to the iPhones Calendar, is that I have been using an AppleScript to accomplish this same task for years, and that is how I felt comfortable creating the calendar event!
Please test it out and let me know what you think!
Here is an updated version of the Shortcut. Run it the first time from the shortcuts app in order to set your UTC timezone offset number, then allow it to be shown on the share sheet. Run it from the share sheet when you have an Ebay AUCTION open in Safari. Please let me know if you encounter any issues with the shortcut.
I just tried the shortcut on my phone and it worked fine. Can you send me an example URL of what you are trying to use the shortcut with so I can test it on my end?