SLA for Invoice accounting

 Hi All,

We have requirement where for the tax line in the AR invoice we have to create a contra debit line with the same amount as tax amount.  We copied the tax line and changed the line type to debit and deriving the tax amount through custom source.

But when i run the 'Create accounting' program in draft mode, the accounting class of the contra debit line is showing as 'Tax' but as per the requirement it should be either 'Contra Revenue' if the item on the invoice is product or 'Deferred tax' if the item on the invoice is service.