Error Description

The CHALLENGE_LOCK_OCCUPIED error indicates that the specific part parameter you are using is currently locked by another active validation process. Scrapingbypass API implements a locking mechanism to prevent redundant resource consumption and session conflicts for the same part.

Common causes include:

• Concurrent Requests: Multiple threads or processes are attempting to use the same part simultaneously.
• Shared Account Usage: Multiple users are operating on the same account and targeting the same part ID.
• Unreleased Locks: A previous request initiated a challenge but was interrupted or timed out before the lock could be formally released.

Solutions

• Implement a Retry Strategy: Wait for the current challenge to complete and the lock to be released, then retry the request.
• Rotate the part Parameter: Change your part value to an idle ID. The valid range for part is 0 to 999.
• Distribute Workload: If running a multi-threaded scraper, assign a unique part ID to each thread to ensure parallel execution without interference.

Tip: Part Management

To avoid this error in high-concurrency environments, maintain a local pool of part IDs and ensure each concurrent worker uses a unique ID from the 0-999 range.