serverName | The SAP connection alias for the SAP server on which to execute the function module. The alias must match a configured SAP connection on Adapter for SAP. | |
$rfcName | Name of the function module to be invoked. | |
$tid | Optional. Specify TID for transactional invoke. | |
$envelope | Optional. Set to "bXML" to encode the results of the function module call in bXML format. |
xmlData | XML message representing the response of the function module |