%% Reference build: welcome and reactivation journeys
%% Reference architecture: a reusable pattern, not a live client integration
flowchart TB
  subgraph z0["Salesforce sandbox"]
    crm["Salesforce CRM<br/>sandbox first"]
  end
  subgraph z1["Integration service (your cloud)"]
    integ["Integration service<br/>middleware or small service"]
  end
  subgraph z2["Braze test workspace"]
    braze["Braze test workspace<br/>welcome and reactivation Canvases"]
  end
  app["App and website<br/>Braze SDKs"]
  chan["Channels<br/>email, push, in-app"]
  cur["Currents to storage<br/>test bucket"]
  crm -->|"contact changes"| integ
  app -->|"SDK events"| braze
  integ -->|"attributes, consent"| braze
  braze -->|"journey messages"| chan
  braze -.->|"Currents events"| cur
  braze -.->|"stage webhook"| integ
  integ -.->|"lifecycle fields"| crm
  classDef salesforce stroke:#125BD8,fill:#e8f0fd
  class crm salesforce
  classDef data stroke:#2f8a3a,fill:#e9f6ea
  class cur data
  classDef engagement stroke:#5747AF,fill:#efedfa
  class braze engagement
  classDef integration stroke:#334155,fill:#eef2f6
  class integ integration
  classDef channel stroke:#2f8a3a,fill:#ffffff
  class app,chan channel