Hi,

For SaaS applications like Bill.com, you can submit a request for a Lite connector through the Fivetran By Request program. You can find more information in our By Request program documentation and submit your request using the Lite Connector Request Form. This program enables collaboration with our team while the connector is built and validated, and offers early access to your data during the development phase.

If you need immediate access or require a custom integration, the Fivetran Connector SDK is available for building your own solution.

Please let us know if you have any questions or need additional guidance on either approach.

Thanks,
Unni