Google Merchant Center Supplementary Feed

Adds AI-optimised descriptions, product FAQs, related products, and highlights to your existing Google listings — without touching prices, stock, images, or titles.

Feed URL:        https://ai.superpharmacyplus.com.au/feeds/gmc-supplemental.txt
Coverage report: https://ai.superpharmacyplus.com.au/feeds/gmc-supplemental-validation.json

What it does

Matches your existing Google listings by product ID (SKU). Products that don't match are simply ignored — nothing breaks.
Only adds/updates these columns: description, question & answer (FAQs), related products, product highlights, and product details. Everything else stays exactly as your main feed provides it.
The FAQ, related-product, and highlight columns use Google's new conversational attributes, which feed AI Mode in Google Search.
Prescription and pharmacist-only items are excluded automatically; they keep their existing Google listing untouched.

How to attach it (owner action — about 10 minutes, one-time)

Sign in to Google Merchant Center.
Open Settings (gear icon) → Data sources.
Go to the Supplemental sources tab and click Add supplemental product data.
Choose Add products from a file and enter the feed URL above (a tab-separated text file — Google's recommended format).
Set the fetch schedule to daily — the feed regenerates automatically overnight.
When asked which primary feed to link it to, select your existing product feed.
After the first fetch, check the data source's report page for any warnings.

Notes

Google can take a few days to reprocess listings after the first fetch.
The coverage report URL above shows how many products carry each enrichment column.
If your primary feed's offer IDs are not SKUs, tell your developer — the match key here is trimmed SKU, or the catalogue product ID when SKU is absent. Confirm this convention matches your primary source.

Selection and exclusion reporting

This supplement uses the same public eligibility, verified category mapping and content validation as the other public feeds. S3/S4/S8 remain blocked; uncertain/default schedules retain the shared policy's existing treatment, not a new GMC classifier. Hidden, synthetic/test, internal-only, under-AUD-1, retracted, unsafe generated content and pharmacist-review-held products remain excluded.

Category exclusions mean no verified category, unknown category IDs, only internal/test category paths, or multiple public paths with no verified declared match. They are public eligibility exclusions, not TGA exclusions.

After shared gating, only supplemental row checks apply: usable exact matching ID (at most 50 characters, no control characters, quotes or spreadsheet-formula prefix), unique offer ID, and non-empty approved description. Missing image, title, link, brand or ACP availability fields do not impose extra GMC exclusions. Relationships reference final supplemental rows only.

The version-2 coverage report separates public_excluded_count, reason-aware tga_excluded_count (a subset), and gmc_format_omitted_count. excluded_count is their total public-plus-format omissions. Product totals are unique; counts in each reason breakdown can overlap and must not be added together. Format/data omissions are not public-safety or TGA findings.

Older sidecars' aggregate tga_gated_count mixed category/content exclusions with TGA. Treat its provenance as legacy/unknown, never as trustworthy TGA evidence. Regenerate only through the signed coherent publication-bundle lifecycle, not a standalone overwrite. Local validation or an HTTP-accessible feed does not prove publication or Google ingestion; confirm fetched/processed status separately in Merchant Center.