BigChange + Zoho FSM Integration

Keep BigChange and Zoho FSM aligned: when project management events happen in one, update the other automatically.

Example: when BigChange's "Watch Contacts" fires, WEXTL can "Add Attachments" in Zoho FSM. BigChange has 10 triggers (including Watch Contacts, Watch Invoices, and Watch Jobs); Zoho FSM has 62 actions (including Add Attachments, Add Attachments to a Note, and Create a Contact).