Do I need a cross-backing track for YAN?

Question

contextual advertising

Why does Yandex Direct automatically produce cross-backing tracks in a company on YAN? Is the audience of the Republic of Kazakhstan narrowing down a lot (GEO: city 550-600 thousand)?

Answer 1

The backing track in YAN is really not really needed. But getting rid of the automatic cross-backing track is also not so easy - Yandex will add it at every opportunity.
You don’t have to worry about the narrowing of the audience, with cross-backing, only the intersection of the audience between targetings in behavioral targeting is excluded. This does not affect topic targeting. So the overall audience reach for the campaign will not change in any way.
But make sure that there are no extra negative keywords left in the campaign when you stop any of the phrases. And so that there are no groups with the status of "few impressions".