If AddRecipe is called with an ExternalId already existing in the recipe management of the vision system, it is expected that the vision system checks whether an identical version of the recipe already exists, provided that the content of the ExternalId allows for such a check (most likely using the hash value).

Note that the method has no way of checking this with the actual recipe content which is not yet known to the vision system.

The method will return FALSE in the TransferRequired argument if the system comes to the conclusion that the recipe already exists with identical content on the vision system. Note that the result is not binding for the client who may decide to transfer the recipe content anyway.

If the server represents recipes in the Address Space, no new entry shall be created in the recipes folder.

The behavior with regard to the ProductId argument is as described above for a new ExternalId. This way of calling AddRecipe can be used to link an existing recipe with another product.