ApexIntermediatequeueablechainingasync
Use Finisher pattern chaining Queueable jobs reliably
Real World Scenario
Multi-step provisioning requires 5 sequential callouts exceeding single Queueable chain depth concerns.
Expected Answer
• Each Queueable executes one step enqueues next on success
• Track state on staging custom object not only job chain
• Handle failure with status field and manual retry UI
• Respect max chain depth with batch for very long pipelines
• Idempotent steps safe on retry from last successful state
• Monitor orphaned staging records stuck in Processing
• Test full chain with mock callouts
Follow-Up Questions & Answers
Click to expand — each follow-up includes a direct, interview-ready answer
Main difference: use case and scale. Each Queueable executes one step enqueues next on success. Track state on staging custom object not only job chain. Pick based on your integration pattern and team capability. Persist pipeline state in database—Queueable chain alone loses context on failure. Balance speed of delivery with maintainability.
Architect Perspective
Persist pipeline state in database—Queueable chain alone loses context on failure.