Yes. A voyage number can be changed after the voyage has been created, provided that CFGAllowOpsVoyageRenumbering is enabled and that the voyage is in scheduled status.
All existing invoices and bunker requirements will need to be deleted to change the voyage number.
If the above reuirements are met , you can just edit the Voyage Number field to the new number.
IMOS decides which voyage is the latest in a chain of consecutive voyages by comparing the numeric value of the voyage numbers. It does not use the order in which the voyages actually took place.
As a result, voyage numbers within a vessel’s consecutive chain must ascend in the order the voyages are sailed. A voyage cannot follow a voyage with a numerically larger number. If you try to give a later voyage a smaller number than the one before it, the change will not go through.