okay trying to find out the best way to do this. My company is moving from 4 digit locations numbers to 5 digits location numbers what is the best way to make sure that when the 5 digit location change that I can still see the 4 digit location data under the new 5 digit location in salesforce  

Hello have a question and wondering what can I do to correct it? Okay I have a HMIS system that is sending data to Salesforce like everyday but some of the data is not being added to salesforce because of (invalid email address) is there something I can do on salesforce side to stop letting salesforce kick back the information and still let the information come in with a invalid email address?

okay trying to find out the best way to do this. My company is moving from 4 digit locations numbers to 5 digits location numbers what is the best way to make sure that when the 5 digit location change that I can still see the 4 digit location data under the new 5 digit location in salesforce