What strategy to choose for Google Ads shopping campaigns?

With the rise of automation and the Performance Max format, there are several opportunities for professionals to manage shopping campaigns in Google Ads. Sometimes it is worth putting your performance into “PMAX”, other times a classic “PLA” is better. In this article, we’ll show you a few basic strategies - depending on the state of your account, feed or client’s business. 

There are a lot of variables to consider when choosing your strategy.
There are a lot of variables to consider when choosing your strategy. 

The starting position

Let’s imagine the situation of a PPC specialist: after acquiring a new e-commerce client, he/​she gets to manage an account with already active campaigns that have been running for a few months and investing, say, several hundreds of euros per month. Only one Performance Max campaign is active in the account.

The goal is clear: to manage the account better than the previous specialist or agency, to get more revenue and ideally with a better return.

So first, we’ll look at what variables to consider when setting up campaigns, attempt a basic typology of Google Ads accounts, and finally, we’ll look at a total of 6 types of strategies we use for shopping campaigns. Finally, we’ll discuss in which situations what type of strategy to choose.

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Variables 

  1. Data: How long has the account been active? How much data is it providing us? Have Shopping campaigns ever been active before? Are we collecting cart data for products? The answers to these questions are especially important in terms of data to base our strategy on. This data is also crucial when using automated strategies.
  2. Product feed: the product feed is the foundation of successful shopping campaigns. We should definitely focus on its size first. If we only have a feed of a few products, we can’t expect automation to work well. Consider whether the product feed allows you to categorize into high performing and low performing products.

    At the same time, you need to take into account the state of the product data, which should match Google’s requirements as closely as possible. Simply put, the quality of inputs is directly proportional to the quality of outputs. 
  3. Budget: it is very difficult to set precise boundaries for budgets, and this variable itself has many other downstream issues. However - the more we are able or willing to invest in credit, the more we can give campaigns room to learn from the data and subsequently deliver stable results. 

    With lower budgets, we have to consider investments carefully and we don’t have the space to use the first period of time for data acquisition or testing.
  4. Goal: When considering campaign strategy, it is always appropriate to also consider broader questions about the client and their plans, needs or vision. If we want to manage shopping campaigns for a client who currently needs to reach a particular target group (e.g. for rebranding reasons), we should also approach our campaign strategy choices with this in mind. For example, the conversion phase of the marketing funnel moves to the side at that point.
  5. Brand: Before launching campaigns, it is essential to consider the strength and position of the client’s brand. This is especially important in campaigns that display their ads in search. For example, if we’re running a Performance Max campaign on a very well-known brand, we need to consider that the campaign will invest heavily in search and branded search queries. Also, it’s ideal to have a conversation with the client before launching campaigns about how much we want to leverage the power of brand in performance campaigns, and whether we want to take a more acquisitive approach to campaigns to drive new customers to our site. 
  6. Background: Before setting up campaigns, it’s also important to consider the assets we have available to use in campaigns. In particular, the materials for the Performance Max format. Does the client have enough quality banners and videos? Alternatively, are we able to prepare them ourselves (e.g. using AI)? Do we want to use content ad formats in the Performance Max campaign for the client as well, or do we want to focus more on product ads in purchases to maximize revenue? 
  7. Seasonality: Are we launching campaigns in the month when the client historically has the highest sales? We should probably anticipate a higher search rate and be mindful of the budget. Or, on the contrary, do we run in a quiet season? It may be that we won’t see some products because of low search volumes.
  8. Other: there are of course more variables and the ones described above should be understood as the main ones. They have the greatest impact on the success or failure of campaigns. Other variables could include customer behaviour, competition and product competitiveness or the overall economic situation in the market.

This article should not serve as a generalized guide for the reader to follow blindly. Each client is different in some way, each needs a specific approach, variables combine or complement each other in different ways, and there are many factors that go into a performance marketing strategy. 

The strategies presented below should help as a tool for how to think about shopping campaigns and what not to forget when choosing them.

Strategies

So how should you approach your Google Shopping campaigns? Here are some of the strategies we use most often. As mentioned above, strategies are heavily dependent on the variables described and different approaches can be used (or at least tested) in each account. The described strategies can also be combined with each other. 

1. One PMAX campaign

In what situation can one Performance Max campaign be enough in an account? These are cases when we don’t have a very large budget for campaigns (however, enough for the Performance Max format - activating a Performance Max campaign with a budget of 2 euros/​day doesn’t make much sense). At the same time, we have a smaller number of products in the feed, so it doesn’t make sense to categorize the feed into multiple campaigns. On the other hand, we have enough products in the feed for the campaign to test them and get the data needed for an automated strategy.

2. PMAX for Top products and PMAX Rest

The ideal solution for medium or larger Google Ads accounts where we have long-standing featured products in the feed that bring in a significant portion of the revenue. In such categorization we should take into account not only the simple number of conversions, but also for example data from the shopping cart or Google Analytics. Pareto’s 80/20 principle can also be useful here. We recommend applying this strategy when there are a larger number of products in the feed, so that even when split into two PMAX campaigns there is enough data for automated strategies. 

3. PMAX and PLA Zombie

A strategy suitable for a feed with fewer products, but at the same time an account where there is enough budget for shopping campaigns. The main PMAX campaign should represent the primary performance portion and the secondary PLA campaign should be used to reactivate underperforming or non-appearing products through manual bidding. 

4. Labelizer

The ideal solution from an automation perspective. Do you have a large product feed? Do you find it difficult and time-consuming to regularly define which products are delivering the best results and which products are just spending but not delivering anything? Labelizer will do this categorization for you and will automatically optimize your feed every day. 

When engaging this tool, we recommend categorizing Performance Max campaigns into a minimum of 2 campaigns, where one campaign will feature high performing products that meet (or even exceed) the account’s ROAS and the other campaign will feature products that don’t meet the set ROAS. Ideally, then, the campaign on high performing products will spend more of the budget and meet a higher ROAS, while the campaign on lower performing products will spend less and meet a slightly worse ROAS. 

This structure can still be supplemented with a Performance Max campaign on the TOP products, where we always want to ensure the highest performance and for some reason don’t want to apply script labeling to them. 

5. Availability

Shopping campaigns can also be categorized by product availability. For example, for products in the home furnishings category (sanitaryware, furniture, etc.), many products are only available on demand or are not immediately in stock for some other reason. However, we sometimes also want to display such products in the product ads. For this case, we recommend to divide the products (for example via a custom label in Mergado) into products in stock and products on demand. 

6. Margin

Another, but certainly not the last possible approach is to structure campaigns according to the margin of the products. This approach is particularly useful if you have a strict ROI target, where it pays to focus on high-margin products for the client. In this case, the margin (for example, in the form of several levels) usually needs to be implemented in the product feed first.

You need to consider revising your campaign structure and figure out how to optimize the Performance Max campaign. Or decide if this campaign format is even appropriate in the current situation. 

After an initial analysis, the specialist finds that the Performance Max campaign only invests around half of the total investment in Shopping ads, with the rest going into underperforming content ad formats. Part of the investment also goes into search, but the ads are mostly displayed on branded search queries and thus do not bring in many new customers who are not yet familiar with the site. They also find that out of a fairly large product feed, only about 10 products actually work and bring in the majority of the revenue. Now what?

Catch all PLA

Especially when using automation in product categorization - see Labelizer - we strongly recommend to also use a catch all standard shopping campaign in the account. External automated tools are to some extent prone to errors or failures, which can easily cause products to be deactivated in Google Ads and thus the campaigns in Purchases to fail.

For these situations, a catch all campaign serves as an emergency brake that simply alerts you to the automation problem with a significant increase (in impressions, clicks and costs). 

At the same time, this campaign will ensure that your products are at least partially displayed. We recommend setting it up with a low budget and low CPC, which will ensure that the campaign is overlooked by the main campaigns. But when the main campaigns drop out for whatever reason, there will be a significant increase in data in this campaign and that will tell you that something is wrong.

 

We believe the campaign strategies and variables mentioned above will help you better optimize and deliver the best results. These are not bulletproof tactics, rather a few possible insights into Google Shopping campaigns - good luck! 

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19. 11. 2024