You can use this function to define further non-SAP numbers for a business partner.
This way, you can store information using keys in other systems or the user's keys at a defined location in the business partner master record.
You define and control Identification Number Categories for the additional partner numbers in Customizing under Additional Partner Numbers.
In Customizing for the SAP Business Partner for Financial Services, you define whether
· the additional partner number must be unique for each partner (a number may be assigned to a partner only once),
· more than one number of the same category can be assigned to the partner,
· this number category may be valid for all transaction partner categories (person / group / organization) or only for one specific category,
· a function module is to be called up to either assign a default value to the additional partner number or to check the partner number.
· Customer card number
· Group key
· Customer number