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Function documentation Numbering Master Records  Locate the document in its SAP Library structure


Each master record has a unique number. You need this number to call up the master record or to post to the customer account.


The account group determines the type of number assignment used and the valid number range for a customer master record.


The customer master record number is assigned either internally or externally. Internal numbers are assigned by the system, whereas you enter external numbers yourself when creating the customer master record. External numbers can be alphanumeric.

The system ensures that the numbers assigned are always unique. With internal assignment, the system selects the next number from the interval. With external assignment, the system prevents you from entering the same number twice.

A customer account has the same account number in all company codes.


You create number ranges in Customizing. For more information about number ranges, see the Create Number Ranges for Customer Accounts activity in the Implementation Guide (IMG) for Accounts Receivable and Accounts Payable.