Application Development Software

Hello everyone
I'm trying to excecute through some code a metadata field update; i'm using the method UPDATE_DOCINFO.

I'm creating a soap request with the following values:

String metaPayload = "";
metaPayload += " dID=\"" + m_dID + "\"";
metaPayload += " dDocName=\"" + m_docName + "\"";
metaPayload += " dSecurityGroup=\"" + m_securityGroup + "\"";
metaPayload += " dRevLabel=\"" + m_dRevLabel+ "\"";
metaPayload += " xComments=\"" + m_comments+ "\"";

When i excecute the code it doesn't throw errors but the field "xComments" is not getting updated

Hope someone can help me, i have the complete code if someone needs it

Thanks in advanced!