Sharing Folders Issue

Sorry I didn't get notification of your post. Thank you for replying.

I have 365 business but is a non profit. I can't find where these options are. If it helps, the folders / files are in one drive. So not sure if you mean the settings are there or elsewhere. The share file settings sliders are set to the minimum security, but I can't see another option to switch off authenticator. To be clear the process I am seeing is:

I sent one of my email addresses a share link, I click on the link, enter that email address, enter the then emailed verification code - then it wants me to use the authenticator app. I can do that, but the vast majority of our charity volunteers won't be able to do that for a variety of reasons. It's that which I'm trying to get round.

The emailed code should be sufficient.