As of 9/18/2018 1:29 PM EST, Microsoft Flow for Office 365>SharePoint Online Custom List>Create Flow>add action “Send email with Options”>Body>Add dynamic content > “Link to item”
1. Set “Use only HTML message” to ‘Yes’
When you receive flow email in outlook the link to item is plain text (non-clickable)
“Select one of the options below to respond” work.
This could be a use case where business wants only plain text emails.
2. Do not set “Use only HTML message” or click “Set a custom value” to reset the field. It shows placeholder text “Use only HTML message”
Email output is same as setting it to ‘Yes’ above.
3. Set “Use only HTML message” to ‘No
When you receive flow email in outlook the link to item is html (works)
Below it you still have non-html version of the email body. (This part is unnecessary and should be removed)