Prospect Disqualification Process

Hello!

I was curious how other organizations track how long their prospects have been disqualified. Currently, when we have a major gift prospect who has been disqualified we put a "MGDQ" attribute on their record. Our team would like to be able to readmit them back into our prospect pool after 10 years, but I don't know if there is an efficient way to do this.

Does anyone have a process they're willing to share?

Thanks in advance,

Sheriece