Posting miscellaneous cash
Miscellaneous cash is cash that is received, but is not related to a particular invoice. For example, a customer might send you a check to apply to their balance, but does not want you to apply it toward a specific invoice.
Note:  When you post miscellaneous
            cash in Customer Cash Receipt Entry to a bank with foreign
            currency, the CR amount is posted in the currency of the bank, not the domestic
            currency. The amount that you enter is the foreign currency amount, and that amount is
            displayed for the transaction in CR Check Center Entry. The GL
            postings are always in domestic currency. The currency exchange rate is applied to the
            GL amounts that you enter.