Tesco Direct: The Power of Real-Time Data on Black Friday
Challenge
Tesco Direct began working with us in June 2015, so Black Friday was our first big test together. After the chaotic scenes across many retailer stores the previous year, we were expecting online traffic to be bigger than ever. There were two challenges that came with this:
- Identify the most popular deals and capitalise on heightened demand and tendency to purchase
- Ensure ads showing for products that have sold out are kept to a minimum
Approach
Keeping the Stock Fresh
Before any sales began, we worked closely with Tesco to understand which products were likely to sell out over the course of the day. We were then able to build product specific ad groups for these and link them to our merchant centre feed, using DoubleClick Inventory Rules.
By setting up these rules for the most at risk products, we were able to rely on our feed to keep our ad groups up to date as much as possible, freeing up our teams time and allowing them to focus their attention elsewhere.
Although the inventory rules helped save a lot of time, particularly in an account of this size, and despite the feed being regularly refreshed throughout the day, it was still not in real-time. Because we were using DoubleClick however, we were able to complement this with human management. Throughout the day the team were able to analyse fresh data and quickly identify any ad groups that were previously converting well but had now suddenly stopped, suggesting the stock may have run out. If we were having to wait for delays in our reports, we could have wasted a lot of ad spend driving traffic towards products that were no longer available.
Pushing the Converters
Another area we needed to monitor closely was which deals were driving the most conversions, and which deals may be driving a lot of traffic but few or no conversions. As many retailers have similar products on sale, it was really important for us to monitor what they were doing but also our own data. Again, there were two parts to this: a) using the advanced features of DS and b) complementing this with real-time management.
Firstly, we applied bid strategies, which could automatically update our bids up to four times per day. This was our base line, ensuring all bids were being adjusted throughout the day.
Secondly, by closely monitoring the data in the interface, we were able to quickly identify which deals were performing the best and react almost instantly to this, helping us to maximise our returns from these products.
Again, if we were restricted to standard reports we would not have been able to capitalise on the consumer demand as it was there. On Black Friday 11% of revenue occurred between 9am – 10am, yet by 11am, when we would have had a full view of data in AdWords, conversions per hour had dropped by 21%.

Results
By acting in real time and continually adjusting our campaigns we were able to achieve:
- 160% increase in conversions year on year
- A year on year cost of sale decrease of 35%
Results
Increase in conversions YOY
Cost of sale decrease YOY
Keys to success
- Using DoubleClick Inventory Rules we built product specific ad groups that were able to link to the merchant centre feed
- Close monitoring of the data, allowed us to maximise the visibility of key products in real time