BAPI_SALESORDER_GETDETAILBOS - ordercfgscurefs table

[stjacqd]

Hello everyone

When running the FM BAPI_SALESORDER_GETDETAILBOS, the table ordercfgscurefs field CONFIG_ID doesn't start by 000001.

When I am running the function and passing the SO number (vbak-vbeln), the itab, field config_id begin with 000003 or any other number.
What happen with the 1 and 2?

Why the FM doesn't always return the config_id sequential number starting from 000001?

Based on my understanding, the config_id should be unique per POSNR of VBAP. And it is used to be the linked between the itabs:
ordercfgscurefs
ordercfgscucfgs
ordercfgscuins
ordercfgscuprts
ordercfgscuvals

Regards