Our 4-language blog showed "76 pages not indexed" in Google Search Console, which was alarming at first. It turned out 51 were auto-generated hashtag pages needing no action — only 17 pages, including real articles, actually needed attention. Here's the investigation and how to manually request indexing for priority articles.

Revisiting our Rakuten Item Search API and Amazon MWS posts from around 2020 and comparing them with today's SP-API design. Three shifts — async processing, exponential backoff, and price-floor protection — trace how a system's design grows up.