@seanthomasadams:
Here is an example of a Flow that runs successfully.
Please note that I purposely put spaces in my column names (not a best practice) to make a point. Flow references the SharePoint internal column names which may be different that the display name (the name you see in the form). If there is a space in the name, the column name has changed or a variety of different circumstances, the display name will be different than the internal name. To find the internal column name, go to the list settings and click on a column. In the URL, you see something like this at the end:
&Field=Turn_x0020_Auto_x002d_Emails_x00
Everything after Field= is the internal column name - you'll use this in the OData filter. My example was for the "Turn Auto-Emails OFF" in my list. The internal name in your list may be different.
Here is the expression that I used when initializing my variable:
formatDateTime(addDays(utcNow(),90),'yyyy-MM-dd')
This expression adds 90 days to today and formats the date in a way that matches the way SharePoint stores the date.
Also, I am sending the email to the person who created the item. If you have another person or group column in your list, you could reference it for the email address.
Finally, please note the single quotes in my OData filter around the values I am looking for - i.e. 'false' and around the variable.


If this addresses your issue, please mark your post as solved.
Scott