Error with JCO Connector

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Using the JCO Connector calling a custom SAP Function Module that had 1 input parameter set as a numeric only field. I was able to connect and use the fuction module and everything worked. The SAP Developers modifed the function module to make the numeric only field a string. I deleted the JCO action block and refreshed the XML document for the modified function module, but when I call it and pass a string I receive this error "[ERROR]: RFC Execution Error: Value '345U000101' cannot be converted to NUM type at field LENUM"

The SAP developers have executed the function module manually and have shown that it works. So now I am stuck with trying to determine if it is an error on the xMII side or the SAP side.

xMII version 11.5

Thanks in advance.

James.

Edited by: James Slaughter on Jan 15, 2008 6:48 PM