String value null in the XI mapping

Hi folks,
is it possible to create in the XI mapping for a string the value <b>null</b> and not an empty string like "". It is necessarily for the Webservice over the soap adapter.
Thanks for answers
Johann

Johann,
Make sure the min. occurance of the target node is 0. If you do not map the field it will not throw an error. It will throw an error only if the min occurance is equal to or greater than 1.
@Shabz,
I guess Mapping to a string constant "null" is not the same as null. Pls correct me if I am wrong.
Regards,
Jai Shankr

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