If security is not enabled to access the SAP MII
transaction WSDLs, then a user ID and password is required
to execute the SAP MII BLS transactions.
User and Password
parameter values will provide the credentials necessary to
execute SAP MII BLS transactions.
If WSDL security is enabled and credentials are added to
the transport, the user ID and password to execute the SAP
MII BLS transactions can be added as part of the SAP MII
transport map either as a constant or as a trigger
variable.
The recommendation is to use constant variables so that it
can be easily edited in case the SAP MII transport goes
into a Store and Forward queue because of an invalid user
ID and password.
Should a user ID and password value that was specified using trigger variables become invalid, resulting in the SAP MII transport going into a Store and Forward queue, that user ID and password must be changed on the transport map as constants. This allows the transactions to be delivered to the host and the transport to switch back to normal mode. Changing the value of a user ID and password in the trigger variables will have no effect and the transport will remain in Store and Forward.