What happens if 2 event based rules fire at the same time and assign different values to the same eVar?

[#1]

Hey I am doing a tagging audit and found that on the site 2 event based rules fired at the same time when click on a button, and they are assigning 2 different values A and B to the same eVar? What will be the outcome of this eVar report? Are both values A and B captured and reflected in the eVar report? Thanks!

[#2 · Accepted solution]

Correct. Only the most recent value would end up in the image request, meaning the first value never makes it to Adobe data collection servers.

[#3]

Thank you for the reply. In such case, value A will be overwritten by value B and won't appear in the report? Is it correct?

[#4]

the rules will fire one after another however and the evar will get first assigned A followed by B and be will persist.

In such cases, the data sequence of the rule plays a key role.