Clarification on custom event param limits in Firebase

Question

I've gone over a ton of documentation on this topic and still aren't sure if the 25 custom params/property limit in Firebase is per app or per event name?

Say I have 50 different events with 5 unique property names each, that would be a total of 250 unique property names. Is such a thing supported or do I start with a limit of 25 across all events?

I have Firebase hooked up to Bigquery so I'm less concerned about the limitations in the Firebase reporting admin.

Thanks.

Answer 1

Limitations for each Firebase project:

Limit for 25 params is per logEvent call.

Limit for 500 events is per app instance.

Limit for 50 custom parameter (40 numeric and 10 texts) is the global limit in Google Analytics for Firebase dashboard.

No limit for custom parameters in Big Query.

This is as of 03/20/2018.