When you try and create an alert, the link doesn’t change, a form pops up for you to fill in. So if you try copy that link to put onto a button, it will just open the list.
To get around that, go to the list settings and click on any of these to get the list ID that has these brackets around it { }.
Select the bit in yellow.
Change it to subnew and enter. The alert form displays. Insert link onto any subscribe link or image you like in your site.
With thanks to Nick Hurst.
Views from Veronique 
Is there a similar solution for Site Pages? This is brilliant!!!
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it really is very useful! And it really works. Thank you!
Like to know though, is there a workaround to adding a subscribe button to individual site pages in Sharepoint 2013? This workaround only works for document libraries and teamsites. Will be grateful if you may help!
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Pleasure babe. 🙂
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That’s handy. “Subscribe” is a more common term than “Alert me” for most users. I’m going to try it out. Thanks!
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