Hello @marioguy08 ,
Taking a quick look at the request id you provided, it looks like the internal error is ‘404’. I expect this is because with a PUT request, the system seeks to update an existing file within the directory you are requesting, which may be a problem here. You are sending requests to /assets, which as a folder does not hold template files. Things like product.liquid would be held in the ‘templates’ folder, which is not accessible through the /assets endpoint.
I hope this helps!
Best,
Graham