Need contract to generate revenue for accounted amounts.

We have a contract where revenue plan is Cost reimbursable and base is raw cost - we do not have burdening.

Scenario:

Entered a PO in May-25 when the exchange rate was 0.85643 and the amount is 34928.55.
AP invoice was generated in Jun-25 when the exchange rate is 0.8513. Which gets accounted as follows :
1) Item: 34928.55 *0.85643 = 29913.85

2) ERV: 34928.55 * (0.85643-0.8513) = -179.18

Net accounted amount is 29734.675.

Both items are interfaced to projects. When generate revenue is run, revenue is only generated for the item line for

34928.55 *0.85643 = 29913.85 ( as conversion from bill transaction currency to contract currency is performed at transaction date).

Our requirement is generate revenue for the accounted amount.