What a growth operator would do first on each channel, with the numbers we use to judge it.
CTR decay or flat reach? Use this D2C fork to decide whether Monday is a creative sprint or an audience rebuild.
Auction diminishing returns, learning wobble, and mix shift - plus a scale protocol gated on new-customer ROAS and MER.
Pre-renewal, skip/swap, cancel-save, win-back, and dunning ownership with Recharge or Skio - the stack that protects MRR.
Stage-by-stage: when DIY, fractional, agency, or Co-pilot fits, plus red flags and what a real diagnosis includes.
Blended Meta ROAS often looks healthy because returning buyers inflate it. Split new-customer ROAS, watch MER, then scale.
A Day 0-21 Klaviyo-shaped sequence for beauty and CPG: education first, cross-sell at Day 21, judge on second-purchase rate.
Split voluntary vs involuntary churn, own retries in the billing app, and wire card-update + pre-dunning before win-back discounts.
Events fire, match rate stays low, Advantage+ feels random. Fix content_id alignment before another creative sprint.
ROAS, break-even ROAS, and MER answer different questions. Scale Meta only when new-customer ROAS and MER both clear.
DPA retargeting and DABA prospecting reach different people. Judge them separately, then decide on MER.
Saturation, creative fatigue, landing page mismatch, and attribution collapse, in the order to fix them.
Strategy or execution capacity? Costs, trade-offs, and which model fits which bottleneck, by revenue stage.
A 30-minute live diagnosis with a growth operator, then a written roadmap in 24 hours with a revenue estimate on every fix. Yours to keep whichever path you choose.