Solved 👍: Apps Script deployed as a Web App returns 404 error

The problem

You deployed your Google Apps Script code as a Web App. However, when you open the web app's URL, it returns a 404 error.

Screenshot of a 404 error page.

Solution

When you deploy your script as a Web App, you will receive a URL like the following:

https://script.google.com/macros/s/AKfycbzeIVAZxmaJreUILd3Ub7wrLj_a7xlYDOB3MU66vNPter-S1t0/exec

Sometimes the URL will contain /u/1/. If you see this in the URL, please remove it.

Next, if you deployed the script from within a G Suite domain. Please add /a/<your domain name> right after https://script.google.com.

https://script.google.com/a/example.com/macros/s/AKfycbzeIVAZxmaJreUILd3Ub7wrLj_a7xlYDOB3MU66vNPter-S1t0/exec

Now, try opening the URL in your browser. Your web app will no longer return a 404 error and you should be able to see the output generated by your web app.

Screenshot of an Apps Script Web App displaying &quot;Hello World!&quot;.

Have feedback for me?

I'd appreciate any feedback you can give me regarding this post.

Was it useful? Are there any errors or was something confusing? Would you like me to write a post about a related topic? Any other feedback is also welcome. Thank you so much!