Populate long text in the 'Confirm. text' of the confirmation data

In our requirement, we are able to create an order confirmation using RFC 'BAPI_ALM_CONF_CREATE' (plant maintenence) but we are not finding anyway to populate the long text OF 'Confirm. text' of the the confirmation(transaction IW41). Please suggest how to populate Long text. in 'Confirm. text' using any RFC or thrugh 'BAPI_ALM_CONF_CREATE' .

Edited by: Rohit Kumar on Oct 7, 2008 3:25 PM