How to Run Retargeting Campaigns in DV360: A Step-by-Step Guide

Retargeting means showing ads to people who have already visited your website or app, or engaged with your brand, to bring back the ones who did not buy or sign up the first time. In DV360 it is often the most efficient line item in a plan. It is also one of the easiest to overspend on, because the audience is small and the platform will happily keep showing ads to the same people.

Done well, it brings back warm prospects at a fair price. Done carelessly, it follows the same few thousand people around the internet. If audience types are new to you, read how to target audiences in DV360 first.

What do you need before you start retargeting in DV360?

You need a working source of first-party audiences, and enough people in it. Check four things.

1. A tag or link that builds lists. Floodlight activities on key pages with the Remarketing option ticked, a linked GA4 property exporting audiences, a YouTube channel linked to the advertiser, or a Customer Match upload.
2. Clear funnel events. Product page view, add to cart, application start, KYC step, purchase. Each should be its own Floodlight activity or GA4 event so you can tell them apart.
3. Enough volume. Google's help says a line item will not serve to a Floodlight activity with fewer than 100 unique users, and YouTube users lists need interactions from at least 1,000 viewers.
4. Consent. Your cookie banner and privacy notice must cover advertising use.

The same tags that build audiences also count conversions, so if tracking is not live yet, start with our guide to tracking conversions in DV360. For the wider picture of collecting and consenting this data, see how to use first-party data in programmatic advertising.

How do you set up a retargeting campaign in DV360?

Build retargeting as its own insertion order, so its budget and caps do not mix with prospecting.

1. Create the audience lists. For each funnel event, build a list with a membership duration. Google's Campaign Manager 360 help recommends 30 days as a default lifespan, and the maximum is 540 days. Build short and long versions where you need them, such as cart abandoners over 7 days and all visitors over 30 days.
2. Create a retargeting insertion order. Give it its own budget, flight dates and frequency cap.
3. Create one line item per segment. For example, cart abandoners, product viewers and general visitors. To get a "15 to 30 days ago" segment, target the 30-day list and exclude the 14-day list.
4. Add exclusions. Exclude purchasers or completed applications on every line item. Also exclude hotter segments from colder ones, so each person sits in one line at a time.
5. Set frequency caps. One per line item, plus a cap at insertion order or campaign level.
6. Choose the bid strategy. For conversion goals, an automated strategy that maximises conversions is the usual choice. Then check the optimised targeting setting. If it is on, the line item can reach beyond your list, which is no longer pure retargeting.
7. Attach creatives built for each segment. More on this below.
8. QA and launch. Confirm the lists are filling, tags are firing and caps are saved, then watch the first 48 hours.

Our guide on how to create a campaign in DV360 covers the general setup screens if you need them.

How should you segment retargeting audiences?

By intent and recency. The closer someone came to buying, and the more recently, the more they are worth and the more relevant your message can be.

Treat these as starting points, not rules. Watch conversion rate by segment and adjust. A real estate developer might stretch windows to 60 or 90 days because buyers take months to decide, while a food delivery brand might cut them to three days. Our real estate planning page shows how a long purchase cycle shapes the plan.

Creative should follow the segment. A cart abandoner already knows the product, so show the exact item and a reason to finish. A general visitor needs a reminder of why the brand is worth a second look.

What frequency cap works for retargeting?

Lower than most people set. Retargeting pools are small, so without caps the system can show the same person dozens of ads a week. That irritates people and wastes money.

DV360 lets you set caps at line item, insertion order and campaign level, and serving stops once the first cap at any level is reached. Use line item caps to control each segment, and an insertion order cap so someone who falls into two segments in the same week is not hit twice as hard.

How do you size a retargeting budget?

Size it from the audience, not as a share of the total plan. The formula:

Monthly budget = audience size × monthly frequency × CPM ÷ 1,000

Here is an illustrative example. A Pune real estate project gets 40,000 site visitors a month. At a frequency of 10 a month and a ₹90 CPM:

40,000 × 10 × ₹90 ÷ 1,000 = ₹36,000

Now suppose the plan had set aside ₹3 lakh for retargeting. At ₹90 CPM that is about 33 lakh impressions, or more than 80 ads per visitor per month. The line items would either fail to spend or push frequency far past anything useful. The better move is to keep retargeting near ₹36,000 and put the rest into prospecting, which fills next month's pool.

Can you retarget YouTube viewers through DV360?

Yes. Link your YouTube channel to the DV360 advertiser and create YouTube users lists from people who viewed your videos or ads, visited the channel, subscribed, liked or shared. Lists become usable once 1,000 viewers have interacted.

One catch: views of bumper ads and non-skippable ads cannot be used to build these lists, and nor can views of video ads shorter than 11 seconds, unless the video is a Short. If you want a viewer list to retarget, include a skippable or in-feed video in the plan. A common pattern is a skippable brand film first, then shorter follow-up ads or display to people who watched it. Our guide to running YouTube ads through DV360 covers the formats and setup.

How do you know if retargeting is really working?

Be sceptical of the headline number. Retargeting reaches people who were already interested, so some of them would have bought anyway. A view-through conversion from someone who saw a banner and later came back through a Google search is not the same as a sale the ad caused.

Two honest checks help:

• A geo holdout. Pause retargeting in one city for two to three weeks while it runs in a comparable city, then compare conversion rates among site visitors in both.
• Click-through and view-through, reported separately. If nearly all conversions are view-through, the line is probably taking credit for demand that already existed.

When we run campaigns for clients, our DV360 Reports Section splits results by creative, audience and geography, which makes city-against-city comparisons easier to read. The page includes a sample report you can explore.

What mistakes should you avoid?

• One line item for all visitors, with one creative and one bid.
• No converter exclusion, so buyers keep seeing "complete your purchase" ads.
• Windows far longer than the category's buying cycle.
• A retargeting budget bigger than the pool can absorb.
• Running retargeting without prospecting, so the pool shrinks every month.
• Forgetting app users and YouTube viewers, who are often a large share of the warm audience.

Next step

Start by listing your funnel events and the monthly size of each audience. That tells you how much retargeting you can sensibly buy. If you would like our team to set up the tags, lists and line items for one flight, a Campaign-Based Engagement lets you run it with us without a long contract.