Diagnosis
When you create a recipe, you must enter a key dateor a change number to specify the date as ofwhich the recipe is valid.
In this case, you have neither entered a key date nor a change number.The system does not create the recipe.

Procedure
Depending on your requirements, enter one of the following:

• The valid-from date you want to use as the key date

You cannot change this key date later.

• A change number with the valid-from date you want to use

You can use this change number to edit other objects as well (forexample, the formula of the recipe). The valid-from date then appliesto all of these objects. It can later be changed.