Why can't I see Facebook Ads Manager?

It is not enabled for your workspace. Facebook Ads Manager is turned on per workspace rather than being there for everyone.

Two things to check, in order.

You hid it from the sidebar

Open Edit sidebar and check whether Facebook Ads Manager is hidden rather than missing.

It is not enabled for the workspace

If it is not there either, the workspace does not have access. Typing the address directly shows a "not found" page rather than an upgrade prompt, so there is nothing to buy from inside the app.

Contact support, or your partner if you use Sellify through one, and ask for Facebook Ads Manager to be enabled.

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Facebook Ads Manager · Why are tools missing from my sidebar?