Why this happens
To run ads on Meta’s platforms, the connected account must have personalized ads enabled.
If an account has chosen to see less-personalised ads, Meta interprets this as personalised ads being turned off. In that case, any ad campaigns linked to that account will be paused or blocked.
You may see an error message such as:
“Because your account chose to see less-personalized ads, you cannot create ads.”
How to fix it
Option 1: Enable personalized ads
Log in to the Instagram (or Facebook) account connected to your ad campaign.
Go to Settings → Privacy → Ads (or Ad Preferences).
Make sure personalised ads are enabled (you should not have “less-personalized ads” selected).
You can find more details in Meta’s guide:
👉 Manage your Ad Preferences on Facebook
Option 2: Run ads without the Instagram account
If you’re unable to enable personalized ads:
Go to Meta Business Suite.
Remove the Instagram account from your Business Portfolio.
Run the campaign using only your Facebook Page instead.
Note: This may limit ad placements on Instagram, but allows campaigns to continue running on Facebook.