le Analytics 4 allows you to modify and create events with regular expressions //

Google Analytics4 now supports the creation and/or modification of events using regular expressions, regex. This allows you to migrate event goals and destinations from Universal Analytics to Google Analytics 4 more programmatically.

More details. Google claims that the new option and feature allow you to create conversions using regular expressions (regex), for web data streams. Regex can be very technical, so be cautious.

Why we care. Some are rushing to migrate to GA4 as they approach the deadline for the GA4 Migration from UA3, which is now 87 Days away. Regex is a powerful tool that can match events and programmatically migrate them.

It works. Google explained that you should avoid using unformatted regex, which can impact site performance.

• Use regex before you use it.
• Compare your regex to ensure it matches what you expect.
• You should specify that your regex is case sensitive if you are concerned about case sensitivity. The option that doesn’t include “(ignore Case)” is recommended.

Google advises against unbounded repetitions or nested repetitions, as they can cause an exponential increase in matching time. You should also limit the number of repetitions you expect.

This is how it looks. This is an example of the interface that allows regular expressions to be used.

The post Google Analytics 4 now allows you to modify and create events with regular expressions appeared originally on Search Engine Land.