Replaces all listing-level channel commissions for the given listing.

Send an array of channel and source commission definitions. Each item requires channel and source; tax and commission are optional (same as POST/PATCH). If none exist yet, they are created. Any listing-level commissions missing from the body are removed (an empty array removes all listing-level commissions).

Unlike GET /unit-type/{unitTypeId} (which remaps a sub-unit ID to its parent before lookup), this PUT stores commissions under the unitTypeId you send — no parent remapping and no 400 for sub-units. Prefer the parent unit type ID so GET and PUT address the same stored document.

These commissions are used for reservations only when the listing levelEntityType is UNIT_TYPE (see GET/PUT unit-type/{unitTypeId}/level-configurations). When the level is ACCOUNT, account-level commissions are used instead.