Breaking the 6-Minute Wall: Splitting Long Tasks in Apps Script

Google Apps Script enforces a hard 6-minute execution limit per run, which can't be solved by optimizing code—only by rearchitecting your approach. The checkpoint-resume pattern, using PropertiesService to track progress between executions, transforms single long-running operations into a pipeline of short runs. This enables true large-scale data processing in Apps Script that would otherwise hit the timeout wall.