Partner Business Manager sharing is the mechanism that makes agency ad account relationships possible: instead of handing over login credentials, one business shares specific assets — ad accounts, pixels, pages — directly to another business's Business Manager ID. Understanding how this works, and how to audit it, protects you from the two failure modes that matter: losing access you need, and retaining access you don't.
How partner sharing actually works
Every Business Portfolio has a unique Business Manager ID. To share an asset, the owning business adds the receiving business's ID as a partner and grants specific permissions on specific assets — for example, advertiser access to one ad account, without exposing anything else in the owning portfolio.
This is the standard mechanism behind agency ad account provisioning: Power Ads shares an ad account into your Business Manager via your Business ID, and it appears in your Ads Manager alongside your own accounts, fully usable, without you ever needing separate login credentials for a different account.
Finding and sharing your Business Manager ID
Your Business Manager ID is visible in Business Settings, under Business Info — it's a numeric identifier, safe to share with a legitimate partner since it only allows them to send you a sharing request, not access anything automatically. You still have to accept the request and it only grants the specific permissions offered.
Never confuse your Business Manager ID with login credentials — sharing the ID is normal and necessary for legitimate partnerships; sharing your password or 2FA codes never is.
Auditing partner access regularly
Partner connections don't show up in your regular people list, which makes them easy to forget. Go to Business Settings > Partners periodically and review every connected business: what assets they can access, what permission level, and whether the relationship is still active and needed.
It's common for a business to accumulate partner connections from agencies or tools they stopped using years ago, still holding access to live ad accounts or pixels. Remove anything that doesn't map to a current, necessary relationship.
- Review Business Settings > Partners on a quarterly cadence, same as internal permissions
- Confirm the specific permission level granted, not just that a connection exists
- Remove stale partner connections from former agencies or unused tools
- Never share credentials — only Business Manager ID, and only to grant a specific request
What good partner hygiene looks like for agency accounts
When onboarding a new agency ad account provider, confirm exactly what's being shared (which accounts, what permission level) before accepting the partner request, and make sure it aligns with what was agreed. If a provider is asking for access well beyond running ads on the shared account, ask why.
On the flip side, when a relationship ends — whether with an agency, a freelance media buyer, or a former tool — remove the partner connection promptly rather than leaving it dormant. Dormant access is still access.
How Power Ads structures this
Power Ads shares agency ad accounts into your Business Manager via standard partner access, scoped to give you full operating control of the account itself without exposing unrelated assets in either direction. This is a well-understood, standard Meta mechanism — the same one used across the agency ad account industry — and it's worth understanding exactly what it grants so you can audit it confidently rather than treating it as a black box.
Key takeaways
- Partner sharing grants specific asset access between businesses without exchanging credentials
- Your Business Manager ID is safe to share; your login credentials never are
- Audit Business Settings > Partners quarterly for stale or forgotten connections
- Confirm the exact scope of any new partner request before accepting it
FAQ
Is it safe to share my Business Manager ID with an agency?
Yes — it only allows them to send a sharing request for specific assets and permissions, which you must review and accept; it doesn't grant automatic access to anything.
How do I remove a partner connection I no longer need?
Go to Business Settings > Partners, find the connection, and remove it — this revokes their access to the shared assets immediately.
