A KUT field is not editable in the Sales Quote OWL. However, this same field is editable when in the detail view.
SAP Cloud for Customer
There are several rules that influence the editability of a Quote, including completion and approval status or the fact that it is inactive.
In mass processing the rules have to be simple for performance reasons. Hence, in the OWL, these rules are applied both for standard and extension fields. However, for a single instance (QT or TI) some rules do not affect extension field.
This is the expected system behaviour
kut field, edit, sales quote , KBA , LOD-LE-CQP , Customer Quote Processing , Problem
SAP Cloud for Customer core applications 2302