Set custom labels for smarter bidding

Custom labels are extra tags you attach to products so you can group and bid on them in Google and Microsoft. They don't show to shoppers — they exist purely to give you control in campaigns.

What to label

You get five custom label slots (0–4). Common, high-value uses:

• Margin band — high / medium / low, so you can bid harder on profitable lines.
• Bestseller — flag your top sellers for their own campaign.
• Season — winter, summer, clearance.
• Price band — under £25, £25–100, and so on.
• Stock level — prioritise deep-stock items.

Set them with a rule

Create a rule such as IF margin > 40% THEN set custom_label_0 = high-margin. If your source has the data (cost, stock, sales), Trajekt can derive the label automatically on every run.

Then use them in campaigns

In Google Ads you subdivide your Shopping or Performance Max campaigns by custom label and set bids or budgets accordingly. The feed does the segmenting; the campaign does the bidding.