Why Page is not responding error found 404

[alesaevon]

Can we create alert in Adobe Analytics for page not found (404) based on specific page. For example: lets say we want to create a alert for homepage 404, if instances are more than 50, can we do that?

[Jennifer_Dungan · Accepted solution]

There was an identical question posted a few weeks ago with multiple solutions posted:

https://experienceleaguecommunities.adobe.com/t5/adobe-analytics-questions/page-not-found-specific-p... 

[jeniferloras]

Hi, this should be possible. You would need to create a specific segment for this.

Without knowing how your tagging is, I can really give you a full answer, but I can give an example with our tagging:

For ALL 404 error pages, our "Pages Not Found" dimension will pass a generic name like "404-error", we also track eVars for both "Current URL" (which includes querystring parameters) and "Canonical URL" and a "Page Type". So in my case, I could create a segment where the "Pages Not Found" (or Pages - since these values are the same) is "404-error" AND my canonical URL is my home page url the example for my own website the same things its happened with me at https://mynstromy.com/ (if you don't have that, you might have do use your full url with some rules to try and capture the variations), or where my page type is "home" (some combination that gets me my home page where it's also a 404) -You should test your segment in Workspace to be sure it returns the exact pages you want. 

https://experienceleaguecommunities.adobe.com/t5/adobe-analytics-questions/page-not-found-specific-p... 

Then when you create your alert, you can set your metric threshold and drag your newly created segment into the filter