Transactions created by user "WEBLOGIN"

Hi Experts,

   We have ISA b2b ecom application.   Very rarely,   Order created by some user ID  is replaced  as created by WEBLOGIN.   As per  my understanding  WEBLOGIN is the system user id no one will use the WEBLOGIN ID to create the orders.   How the system is updating  the created by value as WEBLOGIN ID.

1. we have cheked the order change history.  History also shows only WEBLOGIN ID (not the USER ID which is used for creating order.)

2.  We can confirm that No user is using  the WEBLOGIN  ID.

3.   This is occuring the very rarly .

Can any one have idea about this issue..? 

Thanks.

Regards,

Murugan Arumugam.