Zepto dark-store availability patterns: when your SKU goes OOS and why it matters
Out-of-stock events on Zepto follow predictable geographic and temporal patterns. Understanding them is the first step to fixing them.
Key takeaways
- →OOS events are 3.2× more likely in the 72 hours after a Zepto promotional push, as safety stock is depleted faster than replenishment cycles.
- →Tier-2 dark stores (Mumbai suburbs, Pune, Hyderabad) account for 61% of OOS events despite representing 38% of GMV.
- →A SKU that goes OOS on a Friday is 2.4× more likely to remain OOS through the weekend due to replenishment scheduling.
- →MIRA tracks availability at 15-minute intervals — set an alert threshold below 40% dark-store availability to catch drops before they affect rank.
Why availability data matters for margin
Availability is not just a supply chain metric — it is a margin metric. A SKU that goes out of stock loses its search rank position within 6–12 hours on Zepto. Recovering that rank position requires either waiting (4–7 days organically) or running ad spend to accelerate recovery.
The real cost of an OOS event therefore includes: lost revenue during the OOS period, rank recovery time, and ad spend to accelerate rank recovery. For high-velocity SKUs, this total can be 3–5× the value of the units that were unavailable.
Availability patterns we observed
MIRA tracks Zepto availability at 15-minute intervals across 340 dark stores in 11 cities. Over Q1 2026, three patterns emerged consistently:
Post-promotion depletion
Following a Zepto-initiated promotional push (platform-funded discount), SKU availability drops to below 60% dark-store coverage within 48 hours in 78% of observed cases. Brands that had not pre-positioned additional inventory paid rank recovery costs averaging ₹38,000 per affected SKU.
Tier-2 city lag
Replenishment scheduling for tier-2 dark stores (outside the Bandra-Andheri-BKC corridor in Mumbai, for example) runs 18–24 hours behind tier-1. When a SKU goes low in tier-2, it stays low longer. This is a logistics-side issue, but the commercial signal — availability dropping — is visible in MIRA days before the replenishment arrives.
Weekend cliff
Replenishment runs do not execute on Saturday nights or Sunday mornings in most Zepto regions. A Friday OOS event therefore has disproportionate impact: the SKU stays unavailable for 36–48 hours through peak weekend demand.
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