on one side you have to consider the authorization applied on the fields,
authorizations on fields depends on who created the work and/or enriched the field
some fields are reserved to the CMO that created the work
on the other side the several ways to update the fields
fields can be updated using GUpdate or update ‘Field by field’
which works differently
but the authorizations on fields remain the same, no matter how you choose to update it
“ownership” of fields can be transfered from one society to another when it’s about the distribution scheme
fields about the works itself are generally not reserved (meaning any CMO can update it)
also, many fields are mandatory, and conditions are depending on the type of worksthis can also cause many errors, if you re update includes the deletion of a mandatory field for instance