> For the complete documentation index, see [llms.txt](https://docs.phenixio.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.phenixio.com/for-developers/metadata-support.md).

# Custom Metadata

### Custom data fields in your payment objects

You may want to include some extra data fields in to the payment objects on our Platform. One example would be, customer-id. For your convenience you can associate theses extra fields that are related to specific payments.