Business Number Rules control how OTM generates IDs for business objects such as Order Bases, Order Releases, Shipments, and Invoices. OTM provides default XID sequences for all objects, but you can create custom rules when business requirements call for a specific format or numbering range.

Every rule definition consists of one or more instructions enclosed in braces { }. Literal text, if any, appears outside the braces. For example, the default rule for the invoice ID is: