@Neil Thanks for posting in our Q&A.
For this issue, I have done a lot of research. In our official articles, I find that the URL protocols may be provided in IBM Cognos's developer documentation in the following link.
https://learn.microsoft.com/en-us/mem/intune/apps/app-protection-policies-exception#ios-data-transfer-exceptions
According to the no response from IBM, we suggest to try to get the iOS app's URL via exporting .IPA file. We can read the following link as a reference.
https://geek-is-stupid.github.io/2019-09-21-how-to-get-iOS-app-scheme-url/
Note: Non-Microsoft link, just for the reference.
Hope the above information will help.
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