title: is there a "legal" way to pre-populate facebook messenger text box
body: <p>I'm working on my local e-commerce website that I created using glideapps.com. And I have removed the &quot;buy&quot; button from my product's page and replaced it with a &quot;message seller&quot; button. The reason i did this is because my shop is entirely local. I want my customers to message me first, set up a plan for them to come pick the product up. Anyway, on the website when the customer clicks on the &quot;message seller&quot; button, it will redirect them to my facebook page's messenger. The hyperlink for that button is <a href="https://www.messenger.com/t/**MY_PAGE_ID**" rel="nofollow noreferrer">https://www.messenger.com/t/**MY_PAGE_ID**</a>.
  As you can see, this is a static url. Meaning when they click on it to reach me, i would have no idea what product they were interested in. I would have to ask them what SKU # were they looking at and from there we can plan.
  I googled it to see if there was a way to manipulate the URL and make it so that when you click on the &quot;message seller&quot; button it will redirect you to messenger with prefilled text that contains the SKU# of the product you were looking at. for instance &quot;Hey there, is SKU123343 still available&quot;, you get the idea. And each products would have a different URL based on its SKU#. I was hoping this would work but i read that pre-filled text is against facebook terms and conditions. But i really need a way to get around this. Any ideas or workarounds?</p>
  <p>FYI-- I have been looking for other alternatives like using SMS or whatsapp, or even creating a 1v1 chat inside the glideapp.
  But i disregarded those because 1) SMS means i would be charged for texts. 2) no one uses whatsapp in my community, facebook messenger is all they use, 3) 1V1 chat means i would get a lot of spams and non-trusty customers.</p>
  <p>So if you can suggest me an alternative way I would be very grateful. Im still begginer with coding but i will do what it takes for this to be automated!</p>