Dunning collection workflow with escalating reminder emails, grace period management, account suspension, and payment recovery tracking.

Full FlowZap Code

BillingSystem { # Billing System
n1: circle label:"Start"
n2: rectangle label:"Detect failed payment"
n3: rectangle label:"Log payment failure"
n4: diamond label:"First failure?"
n5: rectangle label:"Schedule retry in 24h"
n6: rectangle label:"Increment failure count"
n1.handle(right) -> n2.handle(left)
n2.handle(right) -> n3.handle(left)
n3.handle(right) -> n4.handle(left)
n4.handle(right) -> n5.handle(left) [label="Yes"]
n4.handle(bottom) -> n6.handle(top) [label="No"]
n5.handle(bottom) -> PaymentRetry.n7.handle(top) [label="Queue"]
n6.handle(bottom) -> Notifications.n12.handle(top) [label="Escalate"]
}
PaymentRetry { # Payment Retry
n7: rectangle label:"Attempt payment retry"
n8: diamond label:"Payment successful?"
n9: rectangle label:"Update subscription status"
n10: rectangle label:"Mark retry failed"
n11: circle label:"End"
n7.handle(right) -> n8.handle(left)
n8.handle(right) -> n9.handle(left) [label="Yes"]
n8.handle(bottom) -> n10.handle(top) [label="No"]
n9.handle(right) -> n11.handle(left)
n10.handle(bottom) -> Notifications.n12.handle(top) [label="Notify"]
}
Notifications { # Notifications
n12: rectangle label:"Send payment failed email"
n13: diamond label:"Max retries reached?"
n14: rectangle label:"Send final warning email"
n15: rectangle label:"Schedule next retry"
n16: rectangle label:"Suspend account"
n17: rectangle label:"Send suspension notice"
n12.handle(right) -> n13.handle(left)
n13.handle(right) -> n14.handle(left) [label="Yes"]
n13.handle(bottom) -> n15.handle(top) [label="No"]
n14.handle(right) -> n16.handle(left)
n15.handle(top) -> PaymentRetry.n7.handle(bottom) [label="Retry later"]
n16.handle(right) -> n17.handle(left)
n17.handle(top) -> PaymentRetry.n11.handle(bottom) [label="Complete"]
loop [retry up to 4 times] n7 n8 n10 n12 n13 n15
}

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