The following advanced settings need to be present in the store configuration. Please visit the storesetup.wws and click the 'tax' tab.
SENDTAXTOWD = TRUE
WDTAXLINECODE = The disributors actual linecode that they create for receiving tax data
WDTAXSKU = This value can be left blank. If blank, the system will generate a six position sku based on the rate. for example: 8.75% would be transmitted as 875000