Where spend or receipt is expected against a reserve in the current financial year, you will need to add the transaction as usual, allocating it to a cost centre and code.
If the payment or receipt does not automatically update your reserve balance, it is likely the reserve has not be linked correctly to the cost code.
In order to record money in and out of the reserve balance cost codes can be linked to the reserves. When a receipt or payment is entered against a cost code linked to a reserve the reserve balance will be amended accordingly.
*Once a code is linked to a reserve all the transactions entered against that code will be shown against the reserve. If you have a code where transactions entered against it do not all relate to the reserve it is linked to, then it would be necessary to set up an additional code specifically relating to the earmarked reserve.