EVENT
This Event is reached when making a change to vendor data, followingthe update function module VENDOR_UPDATE.

INTERFACE
The vendor's key data at company code level and the activity type aretransferred to the additional component. The indicator I_XVBUP servesonly to show that the SAP standard system updates asynchronously.I_AKTYP = 'H' when creating data, = 'V' when changing data.
It follows that no database activities involving the writing of datamay be carried out in the additional component
Updating (including updating of the tables specific to add-ons) iscarried out by the COMMIT WORK of the standard process. If yourfunction module is not called up via RFC, initiate asynchronous updateusing the ABAP statement
IN UPDATE TASK.