flowchart LR
classDef activity fill:#AFDAFD,stroke:#6c8ebf,stroke-width:2px,color:#000880
classDef doc fill:#0565b3,stroke:#6c8ebf,stroke-width:2px,color:#ffffff
257@{ shape: doc, label: "محصول (MTS)"}
class 257 doc
373@{ label: "S2.4 دریافت محصول"}
class 373 activity
257 --> 373