Skip to content
Contact us
  • There are no suggestions because the search field is empty.

Using a custom IRO score methodology in your assessment

A custom IRO score methodology lets analysis owners define their own formulas to calculate IRO scores, instead of the platform default. This is useful if you apply custom logic in your double materiality assessment.

You can set custom scoring scales, logic and materiality thresholds to align with your internal and regulatory expectations. These apply to the IROs that are scored: the IROs on bottom-up topics, and any IROs routed to bottom-up. Topics concluded on the top-down path are decided at topic level, so they are not scored or thresholded. See Choosing a topic's materiality path: top-down or bottom-up.

How to configure a custom IRO score methodology

  1. Access the IRO Hub from the Double Materiality module's left-hand menu.
  2. Click the IRO settings icon.

    Screenshot 2026-10-23 at 12.40.34
  3. Select IRO Score formulas.
  4. Define your formula. Select the criteria to include and apply the supported operators: +, -, *, /, AVERAGE, MIN, MAX. Input formulas for all seven IRO types: risk, opportunity, actual positive impact, potential positive impact, actual negative impact, potential negative impact, and Human Rights-related potential negative impact.

How it works

Once you save a formula, the system recalculates the scored IROs in the selected version. Custom formulas carry over to new versions. Scores appear only once all required criteria are completed.

Tip: if your formula changes the score range, review your materiality thresholds.

How your actual-impact formulas affect the assessment form

The formulas you set for actual impacts also decide whether SMEs/Reviewers see the Likelihood field when they classify an impact as actual:

  • Formula does not use likelihood (as in the default formula): Likelihood is hidden for actual impacts, so assessors only score the criteria that count.
  • Formula uses likelihood: Likelihood stays visible for actual impacts, so the score can be calculated.

For potential impacts, and for impacts with no classification selected yet, Likelihood is always shown. See Assessing IROs and their criteria.

Note: custom formulas and thresholds apply to scored IROs (bottom-up and routed). A topic concluded top-down is decided at topic level, so it is not affected.

Notes on how this feature is designed

  • The default formula leaves likelihood out of actual impacts because an actual impact is already happening (ESRS 1 Paras 40–41).
  • If your methodology scores actual impacts on likelihood, the field stays in the form so assessors are not asked to score something the formula cannot use, and are not missing something it needs.