Custom Workflow / Flow Builder — A no-code builder for automations the vendor did not ship — route this approval, pause that dunning sequence, tag accounts on downgrade. It triggers off the webhook and event layer and writes back through the same APIs the SDKs use.
Custom Workflow / Flow Builder lives in the Platform & Intelligence phase of Grow Revenue — the stage where you retain, expand, and compound revenue on the platform. In the corpus tool index this phase maps to the Analytics and Data platform and Cost & FinOpscategories.
No product category maps cleanly onto this module yet — companies typically build it in-house or cover it with adjacent tooling. See who builds vs buys across the corpus.