We are updating Customer addresses in NetSuite with a load of 3-5 addresses per Customer. The Customer is being created without any address info. Then, we load the addresses, with the labels like "Bill To", "Ship To", "HQ", whatever. We have one address per line in the source file. We split the lines to be separate documents. In the test mode, looking at the logs and source documents, we see each line updates correctly. No errors, not issues. NetSuite response is <success>True</success>. However, when we go into NS and look at the Customer, only the last address is there. We are clearly overwriting the same address space over and over, rather than 'adding' address lines. Any ideas about what we might be missing?