supplier { # Supplier
  n1: circle label:"Start Packing Process"
  n3: diamond label:"Review Packing Process details"
  n5: rectangle label:"Update records for Packing Process"
  n7: circle label:"End Packing Process"
  n1.handle(bottom) -> warehouse.n2.handle(top)
  n3.handle(bottom) -> warehouse.n4.handle(top) [label="Processed"]
  n3.handle(right) -> warehouse.n2.handle(right) [label="Retry/Rejected"]
  n5.handle(bottom) -> warehouse.n6.handle(top)
}

warehouse { # Warehouse
  n2: rectangle label:"Receive Packing Process request"
  n4: rectangle label:"Make Packing Process decision"
  n6: rectangle label:"Continue Packing Process process"
  n6.handle(right) -> supplier.n7.handle(bottom) [label="Success"]
  n4.handle(right) -> supplier.n5.handle(left)
  n2.handle(bottom) -> supplier.n3.handle(left)
}