Product Stability Budget: What It Is and How It Works

Last updated: May 8, 2026

The stability budget tells you how much of your product’s allowable temperature exposure remains during a shipment.

In the platform, this is shown as Remaining Stability Budget (%).

  • Starts at 100% at the beginning of a shipment

  • Decreases as temperature conditions impact product stability

  • Reaches 0% when the product’s allowed limits have been fully consumed

What It Answers

Stability budget helps answer a critical question:

“Given our product’s temperature rules, how much stability margin is left?”

Stability Budget vs Thermal Life (Important Distinction)

These are often confused but represent different things:

  • Stability Budget → Product impact (based on temperature exposure over time)

  • Thermal Life → Packaging performance (how long the shipper maintains temperature)

👉 Stability budget is about the product
👉 Thermal life is about the packaging

How Stability Budget Works

1. Your Product Rules Define the Limits

Stability is based on your configured:

  • Product Temperature Ranges (PTR)

  • Allowed time within each temperature band

    • Continuous limits (single exposure)

    • Cumulative limits (total across shipment)

2. Temperature Data Is Evaluated

As shipment data comes in:

  • The system tracks how long the product spends in each temperature band

  • Time outside ideal conditions begins to consume stability budget

3. Stability Budget Decreases

  • As allowed exposure time is used → stability budget decreases

  • Small exposures may have minimal impact

  • Larger or repeated exposures reduce the budget more significantly

Important: Excursions vs Stability Budget

You may see:

  • Excursions (temperature out of range)

  • But little or no drop in stability budget

This happens because:

  • Excursions are based on shipping limits (STR)

  • Stability budget is based on product-specific rules (PTR + time)

👉 Not all excursions result in meaningful product impact

What the Percentage Means

  • 100% → Full stability budget remaining (no impact)

  • Below 100% → Some stability has been consumed

  • Near threshold → Increased monitoring recommended

  • 0% → Stability limits fully consumed

Thresholds and Alerts

Each lane can define a Remaining Stability Budget Threshold.

  • When the budget drops below this threshold:

    • The shipment may be flagged as high risk

    • Alerts or workflow actions may trigger

👉 This threshold is configured by your team based on SOPs and product requirements

Where You’ll See Stability Budget

You can find Remaining Stability Budget in:

  • Shipment / Product Summary

    • Displayed as a percentage or bar

  • Temperature Release / Review

    • Used to support release decisions

  • Workflows & Automations

    • Can be used as a condition (e.g., only proceed if stability > X%)

Why This Matters

Stability budget helps you:

  • Understand true product impact, not just temperature events

  • Make better release decisions

  • Prioritize shipments that need attention

  • Avoid unnecessary interventions for low-impact excursions

How to Explain This Simply

If you need to explain it to others:

“Stability budget shows how much ‘safe exposure time’ the product has left based on its temperature limits.”

Quick Tip

When reviewing a shipment:

  1. Check stability budget first (product impact)

  2. Then review excursions (what happened operationally)

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