If the path has a key right into a navigation property, the action ought to have a parameter named relatedKey. Since OData $pick out doesn't protect a handful of elaborate queries I would like, I suppose I will stick with static DTO and forbid $choose operations in any respect. In https://kingswoodhomes.uk.com/news/kingswood-homes-site-manager-swaps-site-boots-for-dancing-shoes/