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@jaeopt jaeopt commented Feb 9, 2026

Summary

Excludes CMAB experiments from UserProfileService (UPS) logic to prevent sticky bucketing that contradicts CMAB's dynamic decision-making nature. UPS maintains decisions across the experiment lifetime without considering TTL or user attributes, which prevents CMAB from properly evaluating contextual signals on each decision request.

Changes

  • Modified decision service to exclude CMAB experiments from UPS lookup operations
  • Modified decision service to exclude CMAB experiments from UPS save operations
  • Added decision reasons when UPS is skipped for CMAB experiments

Jira Ticket

FSSDK-12262


🤖 Generated with Claude Code

- Exclude CMAB experiments from UPS lookup and save operations
- Add decision reasons when UPS is skipped for CMAB
- UPS maintains decisions across experiment lifetime, which contradicts CMAB's dynamic nature

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
@jaeopt jaeopt closed this Feb 9, 2026
@jaeopt jaeopt deleted the ai/jaeopt/FSSDK-12262-cmab-ups-3 branch February 9, 2026 23:44
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