GA4 Data filters aren't working with Zaraz

[asafm7]

For Workers & Pages, what is the name of the domain?

Example Domain

What is the issue or error you’re encountering

Traffic that is set to be excluded by IP from GA4, isn’t excluded from GA4

What steps have you taken to resolve the issue?

Hello.

I’m using GA4 data filters:

[GA4] Data filters - Analytics Help

I have two websites; both are set up the same on GA4 to exclude traffic from certain IPs.

The traffic is excluded as expected for the first website, which doesn’t use Zaraz.

For the second website, which uses Zaraz, the traffic isn’t excluded.

“Hide Originating IP Address” and “Trim IP addresses” are disabled.

How can we make the data filters work?