Note: Version v201905 will be sunset soon. All users of those versions must migrate to a newer one.

enum RequiredSizeError.Reason (v202005)

Enumeration Description
REQUIRED Creative.size or LineItem.creativePlaceholders size is missing.
NOT_ALLOWED LineItemCreativeAssociation.sizes must be a subset of LineItem.creativePlaceholders sizes.
UNKNOWN The value returned if the actual value is not exposed by the requested API version.