Buy when the hard part is reliable intake, review, validation, monitoring, and downstream workflow; build only when your requirements justify maintaining that full system internally.
A document automation proof of concept should test real intake paths, varied formats, long documents, missing fields, validation, review, and downstream export—not just clean sample extraction.
Yes. Many teams start by automating internal operations, then later expose the same extraction and workflow capabilities through productized intake, APIs, or customer-facing software.