Deleting List

[Bajamarkit]

Hi every one i have a question about what happens if i delet all the lead list and upload them again with diferent name of the list, it affects the call backs and the reports????
The reason i wan't to do that is that i can't control the zip codes i need to call because all the list are mixed with diferent zip codes plus they have some area codes that i don't have on the do not call list.
Thanks

[DomeDan]

yes you will loose all callbacks.
I would import the leads to a temporary table and do a join with the existing leads to update the zip codes, if you're not familiar with mysql then ask someone that is