Is it possible to amend a querystring?

[Cecile_Maindron]

Hi,

I have realized that there is a typo in one of my querystrings. Is it possible to amend the history?
I have identified the leads and urls, I just want to change type=xx to type=xy

thanks

Cécile @ Talend

[Anonymous]

If you are strong the strings in fields you can do a bulk data update to the leads. 

[Cecile_Maindron]

Jeffrey Jewett : I don't understand your answer, can you please clarify? thanks.