Custom labels for Google Shopping campaigns

Custom labels never show to shoppers. They exist purely so your campaigns can split products into groups you define. Five slots, custom_label_0 through custom_label_4, each up to 100 characters. Margin bands, seasonality, price bands and bestseller flags are the classic uses.

How this app fills it

• The Label tab holds an expression per label slot. Fixed values, product fields and conditional logic all work.
• Empty slots are omitted from the feed entirely.
• Any single product can override its labels from the Products page.
• A supplemental feed can attach labels to items the native Google channel already syncs, which is the classic way to add labels without replacing your existing feed.

Dos

• Decide what each slot means once, and document it. Campaigns filter on exact values.
• Segment by what changes your bids. Margin, price band, seasonality, clearance and bestseller status all qualify.
• Keep the value set small per slot. A handful of values per label keeps campaigns manageable.
• Use expressions on tags or collections so labels maintain themselves.

Don'ts

• Don't repurpose a slot in place. Rename campaigns first, or subdivisions silently go stale.
• Don't mirror data Google already has, like brand or category. Labels are for what only you know.
• Don't create hundreds of distinct values. Campaign subdivision becomes unusable.