At a glance
Mercari Health Score is a single 0-100 read on how healthy your seller account looks to the marketplace, blending rating, ship time, returns, disputes, and listing compliance. When it dips below the safe band, your standing and visibility are at risk.
| What it counts | A composite score from 0 to 100 derived from seller rating, ship-time performance, return and dispute rate, and listing compliance signals. |
| Sample type | Backend API data from Mercari, refreshed on the standard data refresh. |
| Why it matters | Mercari rewards reliable sellers with search visibility and badges, and penalises weak accounts. A falling score is an early warning before any single metric becomes critical. |
| Reading the value | A 0-100 index where higher is healthier. Treat the trend as the signal; a steady decline matters even while the number still looks acceptable. |
| Currency | number |
| Time window | RT/7D |
| Alert trigger | <70 |
| Sentiment key | mer_marketplace_health_score |
| Roles | owner, finance, operations |
Calculation
Vortex IQ combines several account signals into one weighted index on a 0-100 scale. The inputs are your seller rating, ship-time performance such as the share of orders sent within the promised window, your return and dispute rates, and listing-compliance signals. Each input is normalised and weighted so that no single factor dominates, then summed to the headline score. Because it blends a near-real-time view with a 7-day trend, a sharp single-day move and a slow weekly slide both surface here.Worked example
A representative reading of Mercari Health Score for a typical Mercari reseller. Suppose a seller who usually sits around 88 drops to 66, tripping the<70 alert. Unpacking the inputs shows ship time slipped because two orders went out late during a busy week, and one dispute is open. None of those alone would feel urgent, but together they pulled the composite below the safe band, where Mercari can quietly reduce visibility. The action is to clear the late-shipping backlog, resolve the open dispute promptly, and protect the seller rating. Cross-reference mer_ships_within_3_days_rate for the shipping driver, mer_dispute_rate for the dispute driver, and mer_avg_review_rating for the rating driver. Vortex Mind traces the upstream causes that moved the score, and Ask Viq answers plain-English questions like “what pulled my health score below 70 this week?”
Sibling cards merchants should reference together
| Card | Why merchants reach for it |
|---|---|
mer_avg_review_rating | The seller rating is a major input to the composite. |
mer_ships_within_3_days | Ship-time performance directly moves the score. |
mer_dispute_rate | Disputes weigh heavily on marketplace standing. |
mer_return_rate | Returns feed the returns component of the index. |
mer_seller_feedback_score | Adds feedback context behind the rating input. |
Reconciling against Mercari
Where to look in Mercari’s own dashboard: Mercari does not publish a single health number, but it surfaces the underlying pieces in your seller profile and ratings: your star rating, badges such as Fast Shipper, and any policy or shipping flags. This card synthesises those signals into one trackable index. Why the Vortex IQ value may legitimately differ:| Reason | Direction | What to do |
|---|---|---|
| Period boundary. The 7-day trend component depends on where the window falls, so a reading just before or after a bad day can differ. | Variable | Match the period range. |
| Time zone. Underlying event timestamps may sit in a different time zone than your reporting view. | Marginal | Confirm time zone match. |
| Filter scope. The composite weights several inputs, so it will not match any single Mercari metric one for one. | Variable | Match filter settings. |