R27477 ProductType - At Most One Default Type

Code	R27477
Entity	General.Products.ProductTypes Entity
Name	AtMostOneDefaultType
Attribute	IsDefault
Layer	Back-End
Events	Commit
Modify	NO
Action	Validate that: There is only one 'ProductType' with 'ProductType.IsDefault = True'.
Description	When creating a new Product the Product type could be set manually. But it if the field is still empty while choosing the Product group, the field will automatically be filled in if: in the Product group's definition is set a 'Default Product Type'; or there is a Product Type in which definition the field 'Is Default' is checked. This means that if the field 'Is Default' in the Product Type's definition is checked, this specifies that this type is set by default for new products unless another type is specified in the product groups. In order to make sure that the right Product Type is going to be automatically selected in new products, we validate that there is only one Product Type in which's definition 'Is Default' is checked.
Message	Тhere is more than one product type in which definition the field 'Is Default' is checked. Please, choose only one default product type.
Introduced In Version	2017
Revocable	NO

* For more information about the Business Rules Documentation Template and a short explanation of each column, see topic System Business Rules.