Sync new leads from Google Sheets to KlickTipp automatically

flowchart TD trig[\"row added or changed in sheet"\]:::trigdata s0["look up contact by subscriber ID"]:::task s1[("sync fields automatically")]:::store trig --> s0 gx{"× does contact already exist"}:::gate s0 --> gx p00["update contact details"]:::task gx -->|"existing contact"| p00 p10["create new contact"]:::task gx -->|"new contact"| p10 jn{"○ contact record ready"}:::gate p00 --> jn p10 --> jn jn --> s1 out[/"KlickTipp contact record updated"/]:::out pay{{"contacts stay in sync automatically"}}:::pay s1 --> 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