SFDMU Help CenterDoes the Plugin support export of object metadata?
Answer.
No, the SFDMU can't create/update metadata information.
Export/import of metadata is not supported by the SFDMU, because this Tool is intended to deliver solution for data migration not for modification of metadata.
You must have the same object definitions in the tource org and in the target org, unless you map your sobject/field to a different one using the Fields Mapping feature.