Script execution timed out: exceeded maximum allowed time

Large GlideRecord queries without proper limits or inefficient loops processing thousands of records without chunking or yielding control. (high likelihood)

Infinite or deep recursive function calls that consume excessive processing time before the stack limit is reached. (high likelihood)

Synchronous external HTTP calls using RESTMessage or SOAPMessage within business rules that experience network delays or timeouts. (medium likelihood)

Complex database operations or joins on large tables without proper indexing causing query performance issues. (medium likelihood)

System transaction quota set too low for legitimate long-running operations like data imports or bulk updates. (low likelihood)

Step 1: Navigate to System Diagnostics > Log > Application Log and search for the exact error message to identify the specific script and line number causing the timeout.

Step 2: Review the problematic script code for inefficient GlideRecord operations, checking for missing setLimit() calls or unnecessary loops through large datasets.

Step 3: Examine the script for recursive function calls and add proper exit conditions or convert to iterative approaches where possible.

Step 4: Check for synchronous external API calls and replace with asynchronous patterns using scheduled jobs or event-driven processing instead of real-time execution.

Step 5: Navigate to System Properties and review the glide.script.ccl.time_limit property to understand the current timeout threshold and determine if adjustment is appropriate.

Step 6: For legitimate long-running operations, implement chunking by processing records in smaller batches with scheduled jobs or use gs.sleep() to yield control periodically.

Step 7: Test the modified script in a sub-production environment with representative data volumes to ensure the timeout is resolved without impacting functionality.

Step 8: Monitor the System Log after deployment to confirm the error no longer occurs and performance has improved.