Why does nouz ask me to renew Meta access?

Because Meta gives an app access to your ad accounts for about 60 days each time you sign in, and lets no app renew that access on its own: only you signing in to Meta again does. Google Ads access does not run out this way.

A week before it ends, the Overview lists it under Needs your attention, “Meta access ends on” with the date, and Renew access beside it. Until then every number is complete. Once the day has passed, the item reads “Meta access ended on”, and after the next sync, which Meta refuses, Meta shows as not connected. From then on its spend stops reaching Marketing Costs until you renew, so CM3 and EBITDA would read higher than they are, and the Integration disconnected alert emails you.

Renew access opens Settings and then Integrations. Before the access ends, choose Manage on the Meta row, then Add another account; once it has ended, the row offers Reconnect instead. Either way Meta shows its own approval screen, and the list of ad accounts that follows has your accounts already selected. Confirm it, and nouz replaces the old access with the new one for every account you keep.

Nothing is lost while the access lapses. The next sync after you renew reads every day since each account last synced, as well as the last 30 days, so the spend from the days in between lands on the days it was spent. Ad spend already imported stays on your P&L the whole time, and only an owner or an admin can renew, as with connecting an account.