Update a value to NULL with SOAP

Hello all,

I need to force to null some values in person profile by using SOAP. As suggested by Oracle documentation I tried to use the notation xsi:nil="true" but we get an error.

Below you can see the payload used (see the field per:DataCessazione_c)

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:typ="http://xmlns.oracle.com/apps/cdm/foundation/parties/personService/applicationModule/types/" xmlns:per="http://xmlns.oracle.com/apps/cdm/foundation/parties/personService/" xmlns:per1="http://xmlns.oracle.com/apps/cdm/foundation/parties/flex/person/">

<soapenv:Header/>

<soapenv:Body>

<typ:updatePersonProfile>