Meta needs roughly 50 optimisation events in 7 days to exit the learning phase. If your budget is too small relative to cost per order, the ad never gets out.

"(#2446603) Media not owned by the ad account", the missing-bid error, and the Page-not-eligible-for-messaging error — explained in plain language, with fixes.

Most Vietnamese retailers close orders in the inbox, but Meta only counts "conversations". Here's how to turn the inbox into a channel with real numbers.