Creation of SOAP Wrapper

Hi All,

We have developed planned shipment interface & it is working properly.

Now our requirement is basically to create a SOAP Wrapper with Authentication Credential details around OTM Outbound XML before invoking target web service.

Can anyone please suggest me how to add SOAP wrapper in external system & which external system will be preferable i.e. HTTP, Webservice,etc

please suggest

Regards,
dv3