The first 30 days? Your biggest risk is over-introducing variables, not under-testing creatives.
At $300 a day you're in a solid spot to get real signal. No complicated structures needed.
The mistake I see most often is flooding campaigns with too many creatives way too early. Meta can't find a stable winner because it's constantly redistributing learning.
Keep it dead simple for the first month. One CBO scaling campaign. Max a few ad sets. Controlled number of creatives works way better than aggressive fragmentation right now.
Test 3 to 5 genuinely different creatives per week. Not dozens of slight variations. Your goal isn't endless volume - it's fast clarity.
Creative fatigue is hitting faster lately. but most people calling it "fatigue" are actually forcing Meta into weaker traffic pools by overscaling or stacking competing creatives in the same environment.
Worked with a DTC brand selling a £80 wellness product. They restarted Meta after a rough scaling period and simplified everything around £200-£300 a day spend.
before that they were testing about a dozen creatives weekly inside fragmented ABO setups. Performance kept collapsing - CPA swinging from under thirty to above seventy.
They rebuilt into one stable CBO campaign with just two ad sets. Introduced around 4 new creatives a week instead of overwhelming the system.
Within four weeks CTR went from roughly 1.7% to 3.9%. Stable CPA settled near £25-£30. Daily purchases jumped from 4-5 to consistently 12-15. meta finally had clean signal concentration instead of delivery chaos.
Are your creatives mostly different hooks and awareness stages - or just visual variations of the same core messaging angle?