Name the field (for frontend - this will be seen by the users, while in Projects)

Assign a Load order Number that has not been used

Check Custom Customer # to indicate that this is the Foundation Customer # that needs to be sent while syncing 

Check the "Auto-Generate Foundation Customer # (N/A for alpha-numeric)" only if you want the number to be automatically generated while pushing to Foundation (it will pick the highest customer # in foundation and increment it by 1 and use that as the customer # - this will not work if the customer numbers in Foundation are not fully numeric)

Click "Contacts Custom Fields" to add custom field for residential contacts as well - This will appear only in Residential contacts. For other contacts, syncing will happen from Company Contacts

Assign a Load order that has not been used

Check Custom Customer # to indicate that this is the Foundation Customer # that needs to be sent while syncing (This will be the option that makes sure that this field only shows in Residential Contacts)

Name 
Type
User
Text
DropDown
Display label 
Load Order
Enabled
Custom Customer #

How to configure custom or auto-generated Customer # field for Foundation, on Follow