No size match? It's a bounce waiting to happen!

Optisize makes it possible to continously reallocate adspend from products with limited size options available, which typically don't convert, to those who do.
- A crucial ecommerce tool, especially for apparel shops
- Improves profitability in your Shopping or Pmax campaigns
- Proven to increase ROAS by up to 30%
- Easy to set up and use
- Free the first month
Optisize allows you to segment your campaigns by size variant stock availability to scale your winning products and transform underperforming ones into profitable campaigns. Always be one step ahead of Google’s algorithm as popular sizes within product groups fall in and out of stock.
How it works
Optisize in simple steps
Connect feeds
Observe results
Optimize performance
Unlock profits
Connect feeds
Link your Shopping feed to Optisize. We'll generate a supplemental feed, indicating the percentage of size variants in stock for each product. We'll give you a url to the supplemental feed which you can simply register in your merchant center.
Now you have continous data integration between Optisize and merchant center.
Observe results
Create a custom report in Google Ads with our custom label to assess the performance of products with varying size variants in stock.
Stock % | Revenue | ROAS | Conv. rate |
100 | €300.000 | 1000% | 3.51% |
80-99 | €187.500 | 1250% | 3.15% |
60-79 | €71.235 | 950% | 2.95% |
40-59 | €204.370 | 875% | 2.60% |
20-39 | €48.775 | 650% | 1.85% |
1-19 | €10.000 | 200% | 1.25% |
TOTAL | €821.855 | 985% | 2.97% |
Optimize performance
Segment your campaigns if you observe variations in conversion rates between products with low and high size variants in stock.
Frequently asked questions
Why not let google's algorithms do the work?
Google’s algorithm is great, and with Optisize we ensure that it gets even better data to work with. With Optisize you stay one step ahead by automatically moving your products between campaigns based on size availability.
Can I use Optisize with Performance Max Campaigns?
Yes. Optisize works with Performance Max Campaigns.
Will optisize affect my existing campaigns?
Yes and no. We recommend all users to use the free trial period for observation only, meaning you enable Optisize to supply additional data, and then observe results without changing any of your campaigns.
When the observation period ends, you can decide to either create new campaigns based on the data. More often than not, results are so convincing that you will want this.
Our campaign experts are available to help you set up new campaigns based on the data.
What kind of results can I expect?
Every store is unique, and we cannot promise specific outcomes. However, a prevalent trend suggests that products with under 40 % of size variants in stock often exhibit lower performance, while those with over 60 % in stock tend to perform exceptionally well. By isolating these groups into distinct campaigns, you can efficiently scale the performance of products with over 60 percent availability.
Additionally, you have the option to either minimize losses from products with under 40 % availability by excluding them altogether or let Google's bid strategies optimize them for profitability by lowering bids.
Pricing Plans
Simple, transparent pricing for your business needs. All plans comes with support for setting up and verifying results.
Free trial
For verifying that it actually works.
- Unlimited skus
- Basic support
Small
For smaller retailers.
- Up to 10 000 skus
- Standard support
Pro
For larger retailers.
- Up to 100 000 skus
- Priority support
Contact Us
Feel free to reach out to us if you have a question,
feedback, or want help trying out our product.
We'll get back to you immediately.