manage-cac-by-channel

name	manage-cac-by-channel
description	Read CAC by channel and cohort and allocate budget to efficiency, instead of a blended number. Reach for this when CAC climbs.

Skill: Manage CAC by channel

A blended CAC hides which channel is subsidized.

Step 1 — Split CAC by channel

Spend ÷ new customers per channel (§3 #5).

Step 2 — Match to cohort LTV

Read each channel's CAC against its cohort's realized LTV (§3 #1).

Step 3 — Find the inefficiency

Creative fatigue, auction pressure, or channel saturation.

Step 4 — Reallocate

Shift budget to channels holding LTV:CAC above 3:1.

Output

A by-channel CAC, the LTV match, the inefficiency, and a reallocation.