PMAX Shopping Ads

Ask Me Anything Q&A Googleshoppingamarepo

Topic summary

The discussion addresses how to include only specific products in a Performance Max (PMax) campaign.

Solution provided:

  • Navigate to PMax > Asset Groups > Listing Groups
  • Hover over “All Products” and click the plus icon
  • Select “Item Group” and choose desired product IDs

Segmentation options:

  • Products can be segmented by brand, category, product type, or custom labels
  • Two YouTube tutorial links were shared explaining custom labels and their application methods

Product ID clarification:

  • The product IDs referenced are those from the Google Merchant Center feed
  • These can be viewed in Google Merchant Center under the Products section

Campaign maturation timeline:

  • Typical timeframe: 1.5 to 3 weeks for results
  • Can extend to 1.5 months depending on factors like budget and seasonality
  • Initial effects at 1.5 weeks may continue evolving and affecting PMax behavior
Summarized with AI on October 30. AI used: claude-sonnet-4-5-20250929.
1

How do I include only specified products on to a Performance Max campaign?

2

Hello Megon, thank you for your great question. There are multiple ways.

If you don’t have many products go to PMax > asset groups > listings groups > hover over all products > click on the plus icon > then select item group and choose the product ids you want to select.

The above also allows you to segment by brand, category, product type.

And also custom labels, which I explain here: https://www.youtube.com/watch?v=FxoOVFGlGKs

You can then apply custom labels using many different methods explained here: https://www.youtube.com/watch?v=P9neaNemcws

3

Hi Emmanuel, thanks for your response!

When you say “product ids” - are those the product ids from my Google feed that I have set up?

4

Hello Megon, yes that is correct. Once you select items in the subdivision / segmentation drop down. The item ids you see are the product ids from your product feed. You can find the product id’s also in Google Merchant Center > products.

5

Thanks, that is really helpful!

How long does it normally take a PMax campaign to mature and start showing results?

6

Usually with 1.5 weeks, however it can also take 1.5 months. It depends on many factors such as spend, season, etc.

But usually I would say 1.5 weeks to 3 weeks max. 1.5 is the smaller less drastic effects that can continue to change the PMax behavior.