how can I reset counter ‘####’ monthly?
example:
existing
0001/PT/01/2020
0002/PT/01/2020 for January
0003/PT/01/2020
0004/PT/02/2020
0005/PT/02/2020 for February
0006/PT/02/2020
I want it will be like:
0001/PT/01/2020
0002/PT/01/2020 for January
0003/PT/01/2020
0001/PT/02/2020
0002/PT/02/2020 for February
0003/PT/02/2020