Automate Xero invoicing with WhatsApp updates and calendar syncing

flowchart TD trig>"new invoice or payment received"]:::trig s0["create or update Xero invoice"]:::svc s1["check payment status"]:::task s2["notify client on WhatsApp"]:::svc s3["confirm records synced"]:::task trig --> s0 s0 --> s1 s1 --> s2 gx{"+ where to log the record"}:::gate s2 --> gx p00["log payment record"]:::task gx -->|"database"| p00 p10["update calendar entry"]:::task gx -->|"calendar"| p10 p20["update spreadsheet row"]:::task gx -->|"spreadsheet"| p20 jn{"+ all records synced"}:::gate p00 --> jn p10 --> jn p20 --> jn jn --> s3 out[/"invoice tracked across all systems"/]:::out pay{{"hours saved chasing payments manually"}}:::pay s3 --> out out --> pay classDef task fill:#e7f6fe,stroke:#34b8f0,color:#2c2a29 classDef svc fill:#f6f8fa,stroke:#7c8795,color:#2c2a29 classDef mi fill:#e7f6fe,stroke:#0079a8,color:#2c2a29,stroke-width:2px classDef human fill:#fff,stroke:#0079a8,color:#0079a8 classDef store fill:#f6f8fa,stroke:#0079a8,color:#2c2a29 classDef trig fill:#00a4eb,stroke:#0079a8,color:#fff,font-weight:bold classDef trigtime fill:#00a4eb,stroke:#0079a8,color:#fff,font-weight:bold classDef trigdata fill:#8ad4f5,stroke:#0079a8,color:#06314c,font-weight:bold classDef gate fill:#fff,stroke:#e8a23d,color:#6b4708,font-weight:bold classDef out fill:#1f9d6b,stroke:#167a53,color:#fff,font-weight:bold classDef pay fill:#06314c,stroke:#021f33,color:#fff