How to find shared audiences that have not being used for quite a while?
We have an extensive list of shared audiences and I am trying to find the ones that have not being used for quite some time. My initial idea would be building an workflow that does the following:
- Query a list of shared lists
- Query a list of workflows that reference these shared lists
- Query the last time these workflows were run
- Filter the ones not used for more than N months
Although the idea above may work, it will most likely be extremely slow and maybe even impossible to run or build. Was wondering if someone else has any suggestions or tips?
Thanks in advance.