The feed QA pass

The checks to run before a bulk title or attribute change reaches your live product data, in the order that catches the most damage soonest.

Before you change anything

Export the current feed and keep it. It is your only rollback
Record the date and what you changed, so a performance shift six weeks out has something to point at
Pick one product type to change, not the whole catalog. A catalog-wide change has no control group
Note the products in your top revenue decile. Those get read by a human, whatever else happens

Every product has an id, title, description, link, image link, availability, and price
Identifiers are present where they exist, and identifier exists is set correctly where they do not
Apparel products carry size, color, gender, and age group
Price and availability match the landing page right now, not at last export
Images clear the current resolution minimum, and the sale price rules are met where a sale price is set
The product issues view is empty of errors, not just of the errors you recognize

Product type appears in every title, in the words a shopper would type
Brand leads when the brand is searched, and is absent when it is not
The first 70 characters stand alone as a description of the object
Nothing exceeds 150 characters
No promotional language, no all caps, no shipping or price claims
Variant detail distinguishes every item in a size or color run from its siblings

Every generated title ships in structured title, with digital source type set to trained algorithmic media
The plain title attribute is no longer sent for those products, or the declaration is ignored
Every number, unit, material, and capacity in the output appears in the source row
No product type was replaced with a broader or vaguer one
Category mappings were spot-checked against the taxonomy, not trusted
The prompt version and run date are stored next to the output, so a bad batch can be found later

Each label holds business logic the platform cannot infer, not data the feed already carries
Margin band, stock depth, price competitiveness, and lifecycle are covered
Values are a short closed list, spelled identically every time
Every product has a value for every label in use, including the ones you forgot exist
The refresh cadence matches the thing being labeled. Stock depth is not a monthly field

Watch impressions on previously silent products first. That is the signal that fires soonest
Keep a control group of products on the old pattern for at least two weeks
Re-run the product issues view 24 hours later, because disapprovals arrive late
Judge conversion rate last, and expect it to move for reasons unrelated to this change