Hi Kurli,

Try to call a microflow on a button to view document and let microflow contain an activity of download file and please check the box in that activity, so that file will not download automatically instead you’ll have a preview of that file initially.

For getting the error message again try to call a microflow for upload button as well in that way you can check the size of uploaded file and you can show the message appropriately based on file size

Hi Tharun!

If youre referring to viewing filed uploaded via the file manager, you cab set the 'view files in browser' option to true and this will help you to view the file whne you click on the download button, does this answer your question?