Filters may be applied retroactively to any data that has already been processed. What is the accuracy of this statement?

The statement regarding filters being applied retroactively to any data that has already been processed is false. In Google Analytics, once data is processed, it is essentially locked in, and applying filters retroactively does not alter that already processed data. Filters function on data going forward from the point they are applied, meaning any adjustments made through filters will only impact new data that is collected after the filter has been set up.

Filters can be used to refine how data is collected and reported, such as excluding internal traffic, but once that data has been processed, the existing information remains unchanged. Therefore, it is essential to set up filters correctly at the outset to ensure the data is accurately captured from the start, as retroactive application is not possible.