Re: 'shared_onedriveforbusiness' doesn't exist
Hi @cwags8,
Could you share a screenshot of your flow? How is it created?
It seems that there is something wrong with the OneDrive for Business folder you specified. Please make sure the folder you specified do exist.
I have made a flow to convert a document to PDF, which works properly. Please check the following image for a reference.

Besides, I am afraid that converting a .jpg to .pdf is not supported. It returned the error “Not Acceptable” when I tried to convert a .jpg to .pdf.
Best regards,
Mabel