Branch Node
Branch expresses business branches and decides which path to take next based on conditions.
Guide
For example, if a reimbursement amount is below 1000, it goes directly to manager approval; if it is 1000 or above, it first needs finance approval; if invoices are missing, it returns to the applicant.
Another example: when a user submits an order, sufficient stock continues order creation, insufficient stock returns an out-of-stock result, and a discontinued product returns unavailable.
You can understand it as: the fork in the flow.