iOS logs purchase event twice when using logPurchase in Flutter

[Josutoral]

Hi everyone,
I'm encountering a duplicated purchase event in Firebase Analytics only on iOS.

In my Flutter app, I manually log purchases using:

await analytics.logPurchase(...);
On Android, I correctly see only one purchase event per transaction.
However, on iOS, the same transaction logs two events:

One from my manual call to logPurchase
One that appears to be automatically logged by Firebase
I suspect this is related to Firebase's automatic tracking for in-app purchases (IAP) via StoreKit 1, as mentioned in the official documentation.

❓ My question:
Is there any way to disable the automatic logging of purchase events on iOS?
Or any recommended approach to avoid duplicated purchases in reports when manually logging them from Flutter?

This issue is impacting the accuracy of revenue and conversion reports.

Thanks in advance for your help!