I am attempting to add this code but Wix is not recognizing it:
It is from a menu platform company called Meadow (getmeadow.com)
Would really appreciate help here!
Following on from Heath.
Please note that Wix don’t provide support for code provided by third party providers as they have not had the chance to fully test it all works themselves, as shown in the link he provided
https://support.wix.com/en/article/using-iframes-to-display-visible-content-on-your-site
***We cannot provide support for external codes that were not created or tested with Wix. If you are experiencing an issue with your code snippet, please contact the provider directly. ***
Therefore you are much better suited going back to the third party provider, in this case Meadow and asking their own support how to integrate it into Wix, as the code that you have supplied could either be for a tool that goes into tracking and analytics or just simply into a html iframe on your page.
However, Meadow would and should be able to help you more with their own support.