[Alerting V2] [DOCS] [M2] Adding option to rules for when no data is returned

[nastasha-solomon]

Description

Adding a way to handle moments when data isn't retrieved by the rule when the its query executes.

Resources

• [Alerting V2] [UI] No-Data Handling Configuration kibana#251328

Which deployment methods does this change impact?

Elastic Cloud Serverless only

Feature differences

N/A

What Elastic Stack release is this request related to?

N/A

Serverless release

June 2, 2026

Collaboration model

Unknown

Point of contact.

Main contact: @dominiqueclarke

Stakeholders: @tiamliu @jasonrhodes

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[nastasha-solomon]

No docs for this needed. See description in #6687.