CJA (Adobe Customer Journey) Bounce Rate / Engagement Rate as per GA4 definition

[DeniseSp]

All, I am new to Adobe, and I would appreciate your help with the following: 

Do you know how I can define bounce rates in CJA? Specifically, if I want the definition of a bounce to be similar to that of GA4:

Bounce rate is the number of bounced sessions divided by the total number of sessions over a specified time period.

A session is considered a bounce if it doesn't meet any of the following criteria: 

• The user stayed on the page for less than 10 seconds  
  The user didn't trigger an event (link clicks, video views...), 
• The user didn't move on to another page or screen. 

Or how to define the opposite, engagement:

nothing that Bounce rate = 1- Engagement rate

Google defines the engagement rate as the number of engaged sessions divided by the total number of sessions over a specified time period.

An engaged session is a session that lasts longer than 10 seconds,

had a key event (video, link clicks...) or

had at least 2 page views or screen views.

I have come up with the following filter definition for the bounces, but it has a couple of issues (adobe does not track when the user leaves, and I can not ensure everything happened on the same page):

I found the following definition in another post, but it gives me an unreasonable bounce rate (15% instead of around 56% in GA4).

I appreciate your help!!!

@Josh__Stephens

@Jennifer_Dungan

[Jennifer_Dungan]

First off, GA4 and Adobe (AA/CJA) are different programs, I doubt you will ever get a complete 1 to 1 equivalent. Adobe does not track all those extra "engagement" server calls by default (which is a good thing as that would eat into your server call allocation). So you are right, there is really no way to determine the "Exit" (unless the user clicked on an Exit Link which is tracked), if they just back out of the site or close the tab/window. There is also no time spent on such a page view... both Adobe and GA4 use timestamps between calls to calculate that... GA UA never took the time spent into consideration either, only the addition of their "engagement" events allowed them to do this, and only if they are turned on.

In theory, you could possibly create your own custom engagement metrics, but you would be potentially using more server calls than you have been allocated for, which could result in overage charges.... 

I don't have CJA, but I do have Adobe Analytics....

AA has a "Bounce Rate" which is defined as a "single server call" divided by "Entries"

However, we don't like that definition, we prefer to track bounces as only a single page viewed, so we have a custom metric of "Single Page Visits" / "Entries"

I don't think that either "Single Server Call" or "Single Page Visits"... but I believe you can create a segment for:

Session

   Events equals 1

To replicate a single server call in a session....

[BrianAu1]

I recently wrote an Experience League blog post about Customer Journey Analytics (CJA) bounces and bounce rate options, including their implications. The article delves into the use of derived fields and calculated metrics, providing illustrative screenshots of the logic. You can read it here: https://experienceleaguecommunities.adobe.com/t5/adobe-analytics-blogs/calculating-bounces-amp-bounc...