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When specify Featured in Gallery Type and Days_30 in Gallery Duration, my AddItem call is blocked with ErrorCode 21916051
<ShortMessage>Invalid value for Gallery Duration.</ShortMessage>
<LongMessage>Invalid value provided for Gallery Duration.</LongMessage>
Then what are the valid values for PictureDetails.GalleryDuration item field?
To list with Featured First, one can either purchase a seven-day duration or choose to have it last until the list ends which means only Days_7 and LifeTime are the applicable values for the Item.PictureDetails.GalleryDuration property.