Connecting Your Meta Ad Account
Step-by-step: add SMLLR as a partner in Meta Business Settings, paste your Ad Account ID, and verify.
No Meta Login Required
Connecting doesn't involve logging into Meta from SMLLR or sharing a password. Instead, you grant access the same way you'd add any outside partner to your Meta Business Manager — a one-time setup step in Meta's own Business Settings.
Step 1 — Add SMLLR as a Partner
Open Setup
Go to Marketing → Meta Sync → Setup tab. Your SMLLR Business ID is shown there with a copy button.
Go to Meta Business Settings
In your own Meta Business Manager, go to Business Settings → Partners → Add.
Paste the Business ID
Paste the Business ID you copied from SMLLR's Setup tab.
Grant ad account access
Assign the partner access to the specific ad account you want to connect, with permission to manage campaigns.
Step 2 — Connect in SMLLR
If verification fails immediately after adding the partner, double-check the Business ID was pasted correctly and that the ad account access was actually granted (not just the partner added) — these are two separate steps in Meta's Business Settings.
Find your Ad Account ID
This is the numeric ID for your ad account in Meta Ads Manager (no "act_" prefix needed).
Paste it into Setup
Back in SMLLR's Meta Sync → Setup tab, paste your Ad Account ID.
Click Verify Connection
SMLLR checks access to the ad account and, on first connect, creates a dedicated Custom Audience for your account inside it.
"Custom Audience Terms Not Accepted" Error
This is a one-time requirement from Meta, not a SMLLR error — every ad account's admin must accept Meta's Custom Audience Terms of Service before any app (SMLLR included) can create a Custom Audience for it. If you see this message, the error includes a direct link to accept the terms in Meta Ads Manager; once accepted, click Verify Connection again.
Revoking Access Later
To disconnect SMLLR at any time, go to your Meta Business Settings → Partners, find SMLLR's Business ID, and remove it. This immediately stops SMLLR from being able to sync your audience — no action needed on SMLLR's side.
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