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If you want the two charges to split by department but show as just one line on the meter charge invoice. You make a kit product that contains the two products you are using. Then the general ledger will still split by department internally,(as long as the components are set up to the correct product category and the product category has the correct gl sales account assigned to it) but the customer will only see one line on the invoice. Notice in the example below how we created a kit product then set the product on the mono meter to be the kit product. Then added two meter price lines, one each for each product in the kit. That way the two general ledger departments will be charged, but the invoice will only show one line to the customer.
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