Interface StandalonePriceSetValidFromAndUntilAction

Updating the validFrom and validUntil values generates the StandalonePriceValidFromAndUntilSet Message.

As the validity dates are part of the price scope and are not allowed to overlap, this update might return the [DuplicateStandalonePriceScope](ctp:api:type:DuplicateStandalonePriceScopeError) and [OverlappingStandalonePriceValidity](ctp:api:type:OverlappingStandalonePriceValidityError) errors, respectively. A Price without validity period does not conflict with a Price defined for a time period.

If a modification is already in progress for the exact combination of SKU and price scope fields, an [ExactLockConflict](ctp:api:type:ExactLockConflictError) or a [ValidityLockConflict](ctp:api:type:ValidityLockConflictError) error is returned.