Attribution basics: what actually drove that customer

"Where did you hear about us?" is the single most informative question in marketing. Most businesses either don't ask it or ask it poorly. Getting attribution right — even imperfectly — is what lets you spend money and time on what actually works.

Why last-click attribution lies

Your analytics says a customer came from "google organic." In reality, they first saw you on TikTok two months ago, got a retargeting ad on Instagram a week ago, finally searched your name on Google today, and clicked through. Google gets 100% of the credit. The other two channels get 0%. If you make decisions based on this, you'll starve the channels that actually drove the customer.

This is the default in almost every analytics tool. It's wrong, and it wastes more marketing budget than any other single bad idea.

The honest approximation

You can't perfectly track a customer's journey. But you can do much better than last-click. The three-part approach:

1. Ask every new customer directly

"How did you first hear about us?" An open-ended question on your signup form, in your welcome email, or on a first call. The answer is often different from what your analytics says.

2. Use UTM tags religiously

Every link you post on social should have UTM parameters:?utm_source=instagram&utm_medium=social&utm_campaign=carousel-oct. This lets you see in Google Analytics exactly which posts drove traffic.

3. Cross-reference the two

Sum the UTM-tracked visits from each channel AND count the "how did you hear about us" responses. They won't match perfectly. The truth is in between. The channels that show up in both analytics AND the direct question are your real winners.

The 3-touch rule of thumb

Most B2B customers touch 4–7 marketing assets before buying. Most B2C customers touch 2–4. This means:

• Credit top-of-funnel channels (TikTok, YouTube, cold social) with discovery
• Credit middle-of-funnel (email, retargeting ads) with nurture
• Credit bottom-of-funnel (search, direct traffic) with conversion

Killing a top-of-funnel channel because it doesn't show "conversions" is a classic mistake — it's not supposed to convert, it's supposed to start journeys.

The pragmatic report

A monthly attribution summary that balances imperfect data with decision-ready insight:

When to worry about fancier attribution

Multi-touch attribution models (linear, time-decay, position-based) are more accurate but require tooling to implement. Worth it when:

• You're spending more than $10k/month on paid channels
• Your sales cycle is over 30 days
• You have a CRM that tracks inbound source

Below those thresholds, "ask the customer + UTM tags" is 80% of the value at 5% of the complexity.