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Descriptions 
Technical name: COMM_PR_SHTEXT
Set type containing the descriptions created for a product. You can create descriptions for a product for all languages defined in the system.
When a new product is created, the description can be maintained in both the product header in the logon language, as well as in the Descriptions set type for all defined languages. The description from the product header is copied from the system to the set type Descriptions.
When changing products however, a description can only be changed in the Descriptions set type.
Products can be saved without a description.

You can change the standard setting in the Customizing of the Cross-Application Components under SAP Products ® Basic Settings ® Define Characteristics of System Messages by setting the standard message type for this situation to E (error message). This will mean that products without a description can only be saved as an inactive version by the user.