Number ranges assign numbers to individual commercial object database records (e.g. purchase document, addresses, etc.).
A number range object must have been defined for the commercial object in question to enable number ranges to be used. Number ranges can then be determined for the number range object.The numbers assigned by the number range create a unique key for the database records in the system.
Number ranges and number range intervals are maintained either via the application implementation guide or via the SAP menu (Tools ® Administration ® Monitor ® ® Number range buffer).