Purpose
The Enjoy purchase order (transactions ME21N, ME22N, ME23N) replaces the previous purchase order (transactions ME21, ME22, ME23). However, you can still use transactions ME21, ME22 and ME23, and there are no functional limitations.

The procedure and menu paths in the following documentation refer to the previous
For information on the interface and functions of the Enjoy purchase order, see the help area within the application, which you can show or hide.
Process Flow
Result
In the Exchanges area, the purchase contract is assigned to an exchange agreement and thus the data from the exchange is copied into the Enjoy purchase order.
As was the case for the purchase contract, the following data is copied from the exchange header into the purchase order:
The fees for the individual items are also copied from the purchase contract into the purchase order.
See also:
MM – Purchasing:
Purchase Orders