# Maintain Voyages

The details of a voyage can be edited and maintained in the Voyages modules

When you have [located the voyage ](https://docs.dataloy.com/release-5.20/voyage-management-system/step-by-step-guides/voyages/find-voyages)click it and the details will show in a panel (so called "drawer") on the right hand side. Details can be maintained directly in the fields. 

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#### Change ballast port

Ability to change ballast port is only possible when the voyage status is estimate or unallocated
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#### Change vessel

Ability to change vessel is only possible when the voyage status is estimate or unallocated, or when the drawer is not opened from FAS
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