A catalogue change log should show what changed, when it changed and which source supported the observation. It should not erase an older value simply because a new review finds something different. On 12 August 2026, the current Sapphire Blue Cigarettes – 1 Carton (10 Packs) product record<\/a> identified Sapphire Blue Cigarettes – 1 Carton (10 Packs), SKU SS-214, as one carton containing 10 packs. The record showed A$327.54 in AUD and a current in stock state. This is a baseline row, not a permanent price or availability promise.<\/p>\n An append-only log protects the difference between product identity and catalogue conditions. The title, SKU and carton unit normally identify what is being observed. Price, stock, image, category placement and policy text can change independently. Recording them in separate fields makes a later comparison explainable.<\/p>\n Use a consistent schema so two observations can be compared without interpretation. Each row needs a timestamp, final URL, complete title, SKU, sale unit, displayed AUD amount, stock wording, category, image reference and result. If a field cannot be verified, mark it not observed rather than carrying the last known value forward.<\/p>\nStart every row with the same control fields<\/h2>\n
| Log field<\/th>\n | Baseline observation<\/th>\n | Change rule<\/th>\n<\/tr>\n<\/thead>\n | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Identity<\/td>\n | Sapphire Blue Cigarettes – 1 Carton (10 Packs)<\/td>\n | Compare the complete string<\/td>\n<\/tr>\n | ||||||||||
| SKU<\/td>\n | SS-214<\/td>\n | Any mismatch creates a new identity issue<\/td>\n<\/tr>\n | ||||||||||
| Unit<\/td>\n | 1 carton containing 10 packs<\/td>\n | Keep attached to every amount<\/td>\n<\/tr>\n | ||||||||||
| Price<\/td>\n | A$327.54 AUD<\/td>\n | Append a dated value; never overwrite<\/td>\n<\/tr>\n | ||||||||||
| Stock<\/td>\n | in stock<\/td>\n | Record exactly as observed<\/td>\n<\/tr>\n | ||||||||||
| Final URL<\/td>\n | Live product destination<\/td>\n | Check status and redirect behaviour<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n This structure prevents a common error: treating one visible difference as proof that every field changed. An image update does not establish a price update, and a stock change does not prove that the product name or carton unit changed.<\/p>\n Use the product record as the identity anchor<\/h2>\nThe final product page controls the baseline because it combines the complete name, SKU, unit, amount and stock wording. Save those fields together. If the final URL changes, verify whether the new destination still represents SS-214; a redirect by itself is not proof that the identity stayed intact.<\/p>\n The image is supporting evidence, not an identity substitute. Packaging can be updated, photographed from another angle or displayed at a different crop. Compare the live image source and ALT text, but let the SKU and complete title decide whether the log still refers to the same product.<\/p>\n Compare the broad and narrow catalogue routes<\/h2>\n
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