Copying already Amazon-proven, high-converting keywords into TikTok Shop's largely unused 250-character search keywords field, on the premise that purchase intent for a keyword doesn't change across platforms even though the two platforms' ranking algorithms differ.
Pull top-ASIN keywords with high click share and conversion share from the Amazon Search Query Performance (SQP) Report (SQP), cross-reference against the Amazon Product Opportunity Explorer, and assemble a 15-20 keyword list. Paste the list, comma-separated, into the TikTok Seller Center listing's search keywords field, save, and wait roughly 30 days before evaluating product-card metrics.
In a documented test by Elena of AZ Rank, adding three Amazon-proven keywords to an otherwise-unchanged TikTok Shop listing (with two untouched keywords left as a control) drove product-level GMV up 79%, impressions up 102%, and items sold up 75%. The three test keywords — the ones that drove purchases — began outranking the two control keywords that drove none, reproducing on TikTok Shop the same rank-feeds-rank flywheel dynamic that underlies Amazon A9 Algorithm ranking.