Boolean Classes
Boolean classes
establish the dimensions that can be used in the definition of validations, substitutions, and rules. They also specify which message classes can be used for validation messages.
Application area CO and callup point 0001 use Boolean class 001, which is a list of all COBK and COBL fields.
If you create a validation that uses Boolean class 001, you can only use the COBK and COBL fields that are defined for Boolean class 001.
When you create validations, substitutions, and rules, you must assign an application area and callup point code to the validation, substitution, or rule. The key for the application area specifies the general application area where the validation/substitution is used (such as GL for FI-SL postings). The key for the callup point establishes the point at which the processing of the validation or substitution (such as 0001 for a check in the document header) starts. The combination of application area and callup point code determines the Boolean class for a validation, substitution, or rule. The Boolean class defined for a validation or substitution is stored in the header of the validation or substitution.
Tables GB01 and GB01C determine which fields can be used for a specific Boolean class. Table GB01 is a client-independent control table shipped with the SAP R/3 System. This table cannot be changed. Table GB01C is client-dependent and is provided specifically for customer configuration.
FI validations will also be performed on posting lines for documents that are posted from other application areas or that are automatically generated.
It is not possible to select another Boolean class for a callup point. However, you can modify the contents of the Boolean class by adding or deleting dimensions. For more information, see Adding Fields to and Deleting Fields from a Boolean Class.