# Desk log ECOM-MARGIN-20260823

**Status:** First-party illustrative retail composite; not merchant, order, customer, statistical research, benchmark, or independently validated data  
**Run date:** 2026-08-23  
**Evidence checked:** 2026-08-31  
**Operator:** InfiniSynapse Data Team  
**Attestor:** William Zhu, InfiniSynapse cofounder ([GitHub @allwefantasy](https://github.com/allwefantasy))

The operator inspected a 14-day illustrative pack with 18,400 order lines, four channels, 1,240 SKUs, and 96 unmapped marketplace IDs. Three SKUs flipped from positive to negative contribution after returns; their displayed aggregate return rate was 8.4%. Ranking and paid-spend action were held.

The [aggregate CSV](https://infinisynapse.com/blog-media/ecommerce-analytics/downloads/sku-summary-ECOM-MARGIN-20260823.csv) exposes six values and two held actions. The [verification script](https://infinisynapse.com/blog-media/ecommerce-analytics/downloads/verify-ECOM-MARGIN-20260823.py) checks outputs only. Order rows, SKU identities, contribution amounts, return denominators, mappings, SQL, and merchant records are unavailable.

External context: [U.S. Census retail e-commerce](https://www.census.gov/retail/ecommerce.html), [FTC Mail, Internet, or Telephone Order Merchandise Rule](https://www.ftc.gov/legal-library/browse/rules/mail-internet-or-telephone-order-merchandise-rule), and [U.S. GAO Assessing Data Reliability](https://www.gao.gov/products/gao-20-283g) (retrieved 2026-08-31). These authorities did not review the run.