For the first year of my career, I treated the last click like it was the whole relationship. Someone clicked a retargeting ad, bought a hoodie, and I gave that one touchpoint all the credit — like a wedding toast that only thanks the officiant and ignores everyone who actually got the couple to the altar.
The truth is messier and, honestly, more interesting. That "last click" customer had probably seen three organic posts, ignored an email, googled the brand name at 1am, and then finally clicked when the ad caught them at the right moment. The ad didn't do the convincing. It did the closing. Those are different jobs, and paying for one while ignoring the other is how budgets quietly bleed out.
Retention isn't the sequel to acquisition — it's the plot the whole movie was building toward.
This is where email stopped being an afterthought for me. A good paid campaign brings someone to the door. A good lifecycle flow is the one that remembers their name, shows up when it's useful instead of when it's convenient, and turns a one-time purchase into a standing invitation to come back. Brands that nail this stop asking "how do we get more customers" and start asking "how do we keep the ones we already convinced."
So no, attribution isn't a love language. But the channels that work together — instead of fighting over who gets the toast — are the ones that actually make the relationship last. That's the whole job, really: less chasing the last click, more building the thing worth clicking back to.