Our company buys items for several projects. We like to keep the purchases separated by assigning different PO numbers, for example PO-AB-ST-0001 or PO-AB-DEV-0001.
We would like that you could select the prefix for your project and that the -0001 continues auto generating for that prefix. So if the last used PO for AB-DEV was PO-AB-DEV-0005 it should continue with -0006. but if you want a PO for AB-ST and the last one was PO-AB-ST-0008 it should continue with -0009.