What it means: Runs while WordPress renders the header of a network signup page. It is an interface hook, not a signup-completion event.
Screenshot to add: [Workflow editor Signup Header trigger configuration]
WordPress hook
signup_header
How to use it
- Use this event only on a WordPress Multisite network; it is not available on a standard single-site installation.
- Check the available event data and confirm whether the event represents a setup stage, a completed change, or a removal operation.
- Test on a staging network before enabling workflows that modify sites, users, or access.
Important note
Multisite hooks can fire as part of internal network processing. Verify the timing and payload in your own network before relying on the trigger for business-critical automation.