I have a small recruitment agency and I want to improve the way of hiring the candidates at my office. I don't have enough budget now to for specific tools that manage the recruitment process - I am still using the old methods.
A candidate applied and we managed an interview, but then he wasn't enough good for the client. Later he applied again with another email address my colleague didn't recognize it was the same person till I saw him again and I remembered him...
I would like to put him on a 'black'list internally, to avoid mistakes like this again.
How do big companies or agencies do this? Just list his name? Multiple people can have a similar name and I don't want to affect others who have the same name. And as decribed, the candidate used several email addresses.
Can you explain me what to do in this case? What information should I maintain in my blacklist?