Variant Editing Unavailable in Experiment Web Application

Incident Report for Amplitude

Resolved

Start Time: 1:42 PM PDT, August 4, 2025
End Time: 7:45 PM PDT, August 4, 2025

We experienced a partial outage in the Experiment web application where users were temporarily unable to edit variants within experiments. The editing interface was unintentionally disabled, preventing any modifications to variant configurations.

Impact:
- Users were unable to make changes to existing variants.
- Other functionality—including experiment creation, viewing, and reporting—remained fully operational.
- No experiment data or configurations were lost.

Resolution:
- The issue was identified and a fix was deployed at 7:45 PM PDT on August 4, 2025. Variant editing functionality has now been fully restored.

We appreciate your patience and apologize for the disruption.
Posted Aug 04, 2025 - 13:45 PDT