What is the best way to purge a section of data/fields from request item table?

[Rajini2]

We need to delete PII such as personal address, phone#, email address# from request tickets once they are closed. 

What is best way to do this? Is there any OOB to handle the purge? or just Business Rules enough?

[Mike_R · Accepted solution]

There's a lot to think about here. How thorough does this purge need to be? If it needs to be purged everywhere, you also need to think about purging from other spots too, such as audit history, email logs, workflow logs, etc.

[Rajini2]

Data should be should be gone from audit history too.