I can take a guess... LW=Customer - so if you interact with wholesaler/distributors/buying groups or process drop-ship orders... this would provide the end-consumer address information purchasing from the dealer. Just a guess
Every retailer uses a different combination of N101 identifier codes. However, if the 'LW' N101 option is for a specific retailer we can get an explanation from their specifications. Please let me know which retailer is sending this code and I would be glad to provide the meaning for the 'LW' identifier code.
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Best, Adam Lund SPS Commerce Infinite Retail Power