Update risk rating in residual assessment matrixesHow to Update Specific Residual Risk Matrix Values

[KarankiS]

Hello ServiceNow Community,

I'm working with ServiceNow GRC Advanced Risk Assessment and need guidance on updating specific values in the Residual Assessment Matrix without impacting other records.

Current Matrix Configuration:

Inherent Risk Control Effectiveness Current Residual Risk Current Score

High	Strong	Very Low	1
High	Satisfactory	Low	2

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Desired Changes:

Inherent Risk Control Effectiveness Desired Residual Risk Desired Score

High	Strong	Low	2
High	Satisfactory	Moderate	3

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What I've Tried:

1. Manual editing via Matrix tab: The matrix appears to be read-only or updates trigger cascading changes to other records with the same rating.
2. Direct table access: Attempted to edit records in sn_risk_advanced_residual_assessment_matrix table, but encountered business rule validation errors:
   • Error: "Another record with same score 2.0 and a different rating Low exists. Provide a different score."
3. Updating Qualitative Rating Criteria: Considered adjusting the score intervals in the Residual Assessment Qualitative Rating Criteria, but this would affect all 20 matrix combinations, not just the two I need to change.

Questions:

1. What is the recommended approach to update specific matrix records without affecting other combinations?
2. Is there a way to bypass the business rule validation that prevents duplicate scores with different ratings during a controlled configuration change?(OOB Config.)
3. Should I use a Fix Script with setWorkflow(false) to make these changes, or is there a better practice?

Thanks in advance...