PO change EDI ORDCHG dispatch time 3 issue?

Hello everyone,

Can somebody please help me with such issue.

For PO changes in messages I by default have dispatch time 3, why is it like this?

Because I configured (NACE transaction) in condition table and in output type default values dispatch time as 4.

Output type for new PO creates with dispatch time as 4,but  for PO changes with dispatch time 3 and I need also with dispatch time 4.