Here is how I start testing any business from scratch:
- 8 Interests
- 2 pieces of ad copy (angles)
- 4 images
Each interest will live in its own, individual ad set, with Interest Expansion turned off, at $10 day budget.
Each ad angle will live in its own Interest, with 4 image variations. So let's say I write 2 pieces of ad copy for a fitness product. One I will refer to as '6 minute abs' and the other will be called 'Lose belly fat'. And let's say one of my Interests is 'Crossfit'. I will have 2 ad sets targeting 'Crossfit'. One with the '6 minute abs' angle (and 4 images) and one with the 'lose belly fat' angle.
Here is what the setup looks like for this one interest:
So this is just 1 interest. I would repeat this for 7 other Interests for a total of 8 Interests, or 16 total ad sets. At $10/day each this would be $160/day and can allow you to identify winning audiences and ad angles in under a week.
Obviously, you can test less Interests if you have a smaller budget. You could start just by testing 4 Interests. But this is generally how I approach new accounts.