> For the complete documentation index, see [llms.txt](https://smart-connected-supplier-network.gitbook.io/processmanual/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://smart-connected-supplier-network.gitbook.io/processmanual/message-specifications.md).

# Message specifications

- [Despatch advice](https://smart-connected-supplier-network.gitbook.io/processmanual/message-specifications/despatch-advice.md): A detailed usage description of the Despatch advice message
- [Invoice message](https://smart-connected-supplier-network.gitbook.io/processmanual/message-specifications/invoice-message.md): A detailed usage description of the Invoice message
- [Measurement message](https://smart-connected-supplier-network.gitbook.io/processmanual/message-specifications/measurement-message.md): A guide on how to use the SCSN Measurement message