Salesforce ArchitectureArchitect (Hardest)scalabilityexperience-cloudperformance
Architect Salesforce scalability for 100k concurrent Experience Cloud users
Real World Scenario
Insurance open enrollment expects 100k concurrent member portal users; last year login timeouts crashed call center.
Expected Answer
• CDN static assets LWR site performance
• Login rate load test 120k synthetic users full sandbox
• Async processing enrollment submission not synchronous rating chain
• Platform Cache reference plan data reduce SOQL
• Temporary limit increase Salesforce capacity review
• Graceful queue page when at capacity not hard error
• War room monitoring enrollment weekend real-time
Follow-Up Questions & Answers
Click to expand — each follow-up includes a direct, interview-ready answer
Stay within limits by: CDN static assets LWR site performance. Bulkify everything — never query or DML in loops. Async processing enrollment submission not synchronous rating chain. 100k concurrent is capacity architecture—load test at 120k or repeat call center meltdown. Document the decision in an ADR and align with enterprise standards.
Architect Perspective
100k concurrent is capacity architecture—load test at 120k or repeat call center meltdown.