Attribution Window

What it actually means

Every attribution model needs a cutoff. Someone sees your LinkedIn post on a Tuesday. If they become a closed deal three months later, does that post get any credit? The attribution window is the rule that answers that question. A 30 day window says no. A 180 day window says yes.

Attribution models themselves decide which touchpoint gets credit, first touch, last touch, or something split across the journey. The window decides how far back you're even allowed to look before you start assigning that credit (DemandSense).

Why it matters if you sell B2B

Most marketing and ad platforms default to short windows because short windows are what work for ecommerce. Someone clicks an ad, buys a t-shirt three days later, done. That default gets inherited by B2B teams who never think to change it, and it quietly kills the reported value of everything that isn't a last click demo request.

If your CRM or ad platform is set to a 7 or 30 day window, a prospect who followed you on LinkedIn in January, engaged with three posts in February, and finally booked a call in April shows up as a cold inbound lead with no traceable source. The content did the work. The dashboard says it did nothing.

The misconception

People assume the attribution window is a minor settings toggle, something to leave on default. It isn't. It's a direct statement about how long you believe your sales cycle actually is. Long windows exist specifically to capture extended research and evaluation phases, which is exactly what high consideration B2B buying is (Eliya). If your deal cycle averages four to six months, a 30 day window isn't measuring your pipeline, it's measuring a fraction of it and calling that fraction the whole picture.

How it's really used

In practice this means matching the window to your actual sales cycle length, not the platform's default. A company with a 90 day average sales cycle should be running attribution windows of 90 days or longer, and probably looking at multi-touch models rather than last click, since a single LinkedIn post is rarely the whole reason someone bought. The number to check first isn't your attribution setting, it's your own CRM's average time from first touch to closed deal. Set the window to match that, not to whatever the ad platform ships with.