CreateUser with Password

in my process, i have a accion

I have an expression and i can create a user succesfully with...

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var inputXMLUser = "<BizAgiWSParam>";

inputXMLUser += "<Entities>";

inputXMLUser += "<WFUSER>";

inputXMLUser += "<userName>xxxxxx</userName>";

inputXMLUser += "<Organizations><idOrg key=\"1\"/></Organizations>";

inputXMLUser += "<domain>domain</domain>";

inputXMLUser += "<fullName>XXXXXX</fullName>";

inputXMLUser += "<contactEmail>xxxxxxxx</contactEmail>";

inputXMLUser += "<enabled>true</enabled>";

inputXMLUser += "</WFUSER>";

inputXMLUser += "</Entities>";

inputXMLUser += "</BizAgiWSParam>";

Users = CEntityXmlHelper.fromXmlToEntity(inputXMLUser);

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My problem is that i cant set a password

i try to set de password but it doesnt work

inputXMLUser += "<password>XXXXXX</password>";

how can i do this?

Thanks