Batch ETL to a data warehouse template

Components in this data flow diagram

• ERP nightly export
• SFTP landing zone
• CRM CSV extract
• All files arrived?
• Wait & retry until 2 am
• Load to staging tables
• Staging
• Row counts reconcile?
• Abort & email ops
• Transform: lookups & surrogate keys
• Dimension tables
• Fact tables
• Rebuild OLAP cube
• Morning reports emailed

How to use this data flow diagram template

1. Click Open in the editor. The data flow diagram opens on a new page in FlowDiagram — nothing is uploaded and there is no sign-up.
2. Rename, add or delete shapes and drag them where you want; connectors stay attached as things move.
3. Drop in vendor logos from the library — 1,160 of them, including every AWS, Azure and Google Cloud service icon — or restyle it with the colour and theme controls.
4. Prefer text? Edit the Mermaid source below and paste it in through ☰ → Import diagram (see the Mermaid editor); it imports as an editable diagram.
5. Export to PNG, SVG or PDF, or press Ctrl+L for a link that carries the whole diagram.

Mermaid source

The whole template is the text below. Paste it into FlowDiagram, keep it in Git next to the code it describes, or hand it to an AI assistant to extend.

flowchart LR
  ERP[ERP nightly export] --> SFTP[SFTP landing zone]
  CRM[CRM CSV extract] --> SFTP
  SFTP --> ARR{All files arrived?}
  ARR -->|No| WAIT[Wait & retry until 2 am]
  WAIT --> ARR
  ARR -->|Yes| LOAD[Load to staging tables]
  LOAD --> STG[(Staging)]
  STG --> VAL{Row counts reconcile?}
  VAL -->|No| FAIL[Abort & email ops]
  VAL -->|Yes| XF[Transform: lookups & surrogate keys]
  XF --> DIM[(Dimension tables)]
  XF --> FACT[(Fact tables)]
  DIM --> CUBE[Rebuild OLAP cube]
  FACT --> CUBE
  CUBE --> RPT[Morning reports emailed]

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