Overview

Amazon has opened the Sponsored Brands (formerly HSA) advertising API to let third‑party platforms edit bids directly, a capability that went live this week. The change enables tools such as Prestozon to push algorithmic bid suggestions straight into Sponsored Brands campaigns, giving sellers an automated lever to trim ACOS and boost ROI.

Key Points

• API editability unlocked — The latest Sponsored Brands API now supports bid‑update calls, whereas previously external software could only retrieve performance data.
• Bid suggestions introduced — Prestozon surfaces a daily list of recommended bid adjustments for every keyword and product target inside a Sponsored Brands campaign.
• Real‑time refresh — Recommendations are regenerated each day, so sellers can react to price wars or seasonal spikes without leaving a spreadsheet.
• Projected performance attached — Each suggestion includes estimated impressions, clicks and cost based on the last 30 days of campaign history.
• No extra Amazon fee — The edit function is delivered through the existing Prestozon subscription; Amazon does not charge a separate premium for API write access.
• Early beta results — Testers who applied the suggestions for a full month reported an average 8 % drop in ACOS while keeping overall impression share steady.

How Bid Suggestions Work

1. Data aggregation — Prestozon pulls the most recent 30 days of spend, sales, click‑through rate and conversion data for each Sponsored Brands keyword and product target; for example, the term “organic coffee beans” might show $1,200 spend, 1,800 clicks and a 12 % conversion rate.
2. Algorithmic evaluation — The platform runs a proprietary model that compares each term’s efficiency against the seller’s target ACOS, marketplace competition and any seasonal trend; a keyword delivering a 12 % ACOS in a campaign aiming for 10 % will trigger a lower‑bid recommendation.
3. Recommendation creation — Based on the analysis, the system generates a “Recommended Bid” value, a confidence score, and an estimate of daily impressions if the new bid is applied; for instance, it may suggest raising the bid for “organic coffee beans” from $1.20 to $1.35 with an 85 % confidence and an expected 2,400 extra impressions per day.