Issue with "timing" in Message output of Change PO

Question

Dear Experts,
For change PO, We are facing issue with the Timing in message output of PO.
i.e, For example when we create a PO - the timing in message output is "1"
after executing ME9F, the message turns GREEN - and still the timing is 1.
Change PO : NOW WHEN WE CHANGE A PO, a new entry of Message output appears in "YELLOW"
Here is the issue - Now when we manually change the timing from "3" to "4", initially it appear's "4",
but if u refer the below screenshot - once we save the application i turns back to 3.
any idea - why this is happening.
Thanks in advance.
Regards,
Rohit

Answer 1

Hi,
1st  make sure  which Dispatch time you want for your PO layout and restrict changing dispatch time manually in PO.
Now use t.code:NACE, with application EF for your PO message type, Keep Dispatch time 4 in ‘Default values’ TAB  and select check of “CannotBeChanged” in Basis Data TAB and save.
Maintain message condition record in t.code:MN04 with PO message type and keep Dispatch time 4.
Now create PO , try to change Dispatch time  and see how system behave!
Regards,
Biju K