Hi,
At first you have to create a Material with serialization profile active
In transaction code, OIS2, you will have serialization profile, with Category S
Under serialization procedure, select the respective procedure SDAU for example to create sales order and choose Equipment required as 02
With these settings, once you create a sales order with relevant serial number, in the background Equipment will be created. This is the functionality of Serial number management
If you need to create Serial number alone for a material and subsequent Equipment without any Transaction as part of Master data
Just use IQ01 with Material and serial number combination an Hit enter
In the next screen, click on "activate Equipment view" system will create Equipment and serial number simultaneously
Hope it is clear
revert, if you need any other details
regards,
santosh