Sage Construction & Real Estate

When linking cost codes in Contracts the error message that the cost code already exists pops up, however we are using an Extra. We have done this a million times with extras, I'm not sure why this is now happening.

What is the standard practice for creating/updating labor rate tables? Do you create a new rate table every time rates change (we do annually) - or do you just update the current table with the new rates? I'm new to Sage so looking for advice on how to…