@Franklin John Welcome to Microsoft Q&A forum and thanks for reaching out here.
Currently, only the below out of box SAP connectors are available in ADF for SAP data extraction.
Ref doc: SAP connectors overview
Hence there is no native ADF connector for SAP ByDesign at this point.
Workaround 1: To move data to/from a data store that the service does not support, or to transform/process data in a way that isn't supported by the service, you can create a Custom activity with your own data movement or transformation logic and use the activity in a pipeline.
Workaround 2: By looking at the document, my understanding is that it has API support. If that's the case, then you may explore REST/HTTP/OData connectors to extract the data.
If you have a feature request for a new connector to extract data from SAP ByDesign, highly recommend you submit feedback in IDEAS forum here: https://feedback.azure.com/d365community/forum/1219ec2d-6c26-ec11-b6e6-000d3a4f032c
All the feedback shared in this forum are actively monitored and reviewed by respective product owners.
Hope this helps.
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