In standard SAP system, number range assignment for reservation is allocated as 01 as default. To change the number assignment following customization steps can be done.
Internal Number range is only possible to define for reservations. To use the external number range assignment RB we need to implement function module BAPI_RESERVATION_CREATE1
Material Management > Inventory Management and Physical Entry > Number Assignment for reservation
- Click on the intervals
- Click on Change Intervals
3. Click on the insert intervals and maintain the number range
4. Press the back button and click on No.range res/ Dep.rq.
5. By default 01 is defined in standard system.