Is the Namespace for a SOAP Web Service case sensitive?

I tried deploying a web service that I changed to a machine and when I tested out one of the web methods I got an error stating

"Server did not recognize the value of HTTP Header Soapaction"

I did some searching for the issue and开发者_JAVA技巧 that error seems to occur at times when there is a difference in namespace. I looked at what is working in my development environment and the namespace looks somewhat like this

https://webservice/ServiceName

and the namespace for the previous web service in production looks like this

https://webservice/servicename

Does case matter? Should they match exactly?

They should match exactly: http://www.w3.org/TR/REC-xml-names/#NSNameComparison/

The URI references below are all different for the purposes of identifying namespaces, since they differ in case:

•http://www.example.org/wine

•http://www.Example.org/wine

•http://www.example.org/Wine

Yes. Everything in XML is case sensitive.