BM5 versus BM9 versus unlimited is the tier ladder buyers usually start with, and it is the cleanest first decision. BM5 gives you five ad-account slots — enough for a single buyer running a moderate vertical. BM9 doubles down. Unlimited removes the slot ceiling but stays bound by other Meta-side limits that vendors rarely advertise. Each tier carries its own price-survival ratio and the articles below quantify each one with field data.
Less obvious is the question of attached profile age. A BM created on a fresh PVA reads to Meta differently than the same BM created on a three-year aged profile. The Manager inherits a portion of the trust score from its owning profile, and that inheritance survives even when the profile is later removed from the BM admin role. We benchmark this across three hundred Manager configurations and publish the survival curves where they exist.
The category also covers hardening — the editorial term we use for the operational practice of making a Manager harder for Meta's automated review to flag. Two-factor on the owning profile, billing history that does not look freshly seeded, ad-account names that read like real businesses rather than testbed-1 / testbed-2. None of this is a magic bullet. All of it together is the difference between a Manager that survives a quarter and one that hits a thirty-day pause.