Limitations

Using the file service is not the same as having direct access to files. Solutions that used to run on-premises may need to be rewritten to consider the new infrastructure. That said, you can still do most of what you were used to.

File size

Since the architecture is now based on requests and responses, there are limitations to the size of both. Those limitations can stem from the Business Central service tier or the underlying HTTPS requests. As a general rule of thumb, you should try to limit the request and response to a maximum of 50 MB each. You can still work on bigger files using indexed reading and writing.

Read about thunking for larger requests or responses.