Invoice Parameters

Use WT.tx_i, WT.tx_id, and WT.tx_it parameters together. You must enable Visitor History in order to use the Invoice parameters.

WT.tx_i

WT.tx_i=InvoiceNumber
Identifies the invoice number for the purchase. Webtrends Analytics uses data stored in Visitor History to make sure that a page view with an invoice number is a new purchase and not the result of a visitor refreshing the page after making a purchase. If Webtrends Analytics sees a page view with an invoice number, that page view is compared against the last three invoices for a visitor. If the WT.tx_i value does not match the last three invoices, Webtrends considers it a new purchase.

WT.tx_id

WT.tx_id=InvoiceDate
The format is mm/dd/yy. A 4-digit year is also allowed: mm/dd/yyyy.

Identifies the purchase invoice date, which is based on GMT. If the invoice date is three days older than the date of the visit, it is assumed that the hit is not an actual purchase but a view of a previously bookmarked or saved page. If the invoice date was less than three days than the date of the visit, the WT.tx_i parameter is used to determine if the hit is a valid purchase.

For example, a visitor makes a purchase. The purchase is accounted with an invoice date. The visitor saves a bookmark to the page. Five days later, the visitor goes to the bookmarked page. This causes another hit to be sent to SDC. However, the WT.tx_id parameter still contains the original purchase date. Webtrends analysis sees that the date of the hit is several days after the date found in the WT.tx_id parameter and determines that this is not an actual purchase.

WT.tx_it

WT.tx_it=InvoiceTime
Identifies time of the invoice. The format is hh:mm:ss where hh is in a 24-hour format (0 = midnight, 23 = 11pm).

This parameter helps determine when an invoiced purchase was made. This value is used along with WT.tx_id and WT.tx_i to determine if the purchase was a valid purchase or if this was a user refreshing the web page after a purchase or returning to the page to check status.