Read a link table before you copy anything

A link table is a catalogue, not a checkout. Each row is a seller listing that someone has already looked at, and each row will still change — price, stock, options and even the listing itself can move between the moment the table was written and the moment you paste the link.

The work in this step is reading: identifying the platform, the seller, the option set and the price basis, and deciding which of those you need to re-check before the row becomes an order.

Three conditions make a row orderable without returning to the table: an exact option string, an established price basis, and the date the listing was last opened. If any of the three is missing, the row remains a candidate rather than a decision. The stop signal is subtler than a dead link. A listing that still loads but no longer matches the row description, or one whose variant names have changed since the table was written, should be dropped rather than repaired, because a substituted item is no longer the item that was researched and priced. A row that cannot be described in those terms cannot be ordered yet.

Currency conversion deserves its own figure. Prices carried in yuan alongside dollar entries across the same snapshot set imply a CNY/USD ratio of roughly 6.232, which is a reference point rather than a rate available to anyone. The practical test is arithmetic: the $36.18 median row converts to about 225 yuan at that ratio, so a listing priced far from the relationship is usually either a different quantity basis or a stale entry. Recording the assumed ratio with the price makes the conversion reviewable later. A row re-checked months afterwards can only be compared if the ratio originally assumed was written down. It is a cross-check, not a quotation.

Rewriting a variant name in a paraphrase removes the ability to prove what was ordered. Where a seller offers numbered sizes and the order carries a descriptive word instead, the warehouse buyer has to interpret, and interpretation is where the wrong size enters the chain. The cost appears later as a return, a re-order and a second international leg, none of which the seconds saved by retyping offset. Copying the string verbatim, including punctuation the seller uses, is the only version of the instruction that can be checked against the listing page. The paraphrase that reads most naturally to the buyer is the one most likely to be wrong.

The output of this step is a small portable record: link, option string, quantity basis, price with its currency, and the check date. Step 3 pastes that record into the order form, and the same record is what makes a later dispute arguable rather than anecdotal. If the record is thin, the order form inherits the ambiguity, and every subsequent stage is built on a description that was never precise: the warehouse instruction, the photograph comparison, the customs declaration. Writing it down takes less time than the first chase message it prevents. A record written once is reused by every later stage, without being reinterpreted or argued over again.