When bulk ecommerce workflows became repetitive, Apps Script became a way to transform data, call APIs, generate fields and automate work directly around Google Sheets.
The first programmable workflows
Apps Script changed the spreadsheet from a place where work was stored into a place where work could execute. Repetitive transformations, field generation and API-driven tasks could be turned into buttons, menus and repeatable processes.
Because these automations were built around real catalog files, they also taught an important engineering lesson: automation must protect existing good data and fail safely.
The limits became useful
As files and workflows grew, Apps Script limits became a signal that some jobs needed a different architecture. Long-running jobs, model calls, resumability and large batch processing were easier to control outside the spreadsheet.
That pressure pushed the next step: Python applications designed specifically around ecommerce data.