How are you calling the WS?

Are you using a Business Operation with EnsLib.SOAP.OutboundAdapter?

To understand how the header can be customized, can you provide a sample of your SOAP call?

I really, really doubt that the issue is the header namespace prefix.

What does the error (soap fault) says?

To me it looks the same/correct, what do you want to change/edit??

EPTEST>Set comp=$system.Encryption.Base64Decode("y61UKEstqlTIyc9LVyguKcoEUuUZmckZCnmpqSnFCiX5CkmpCimpaTmJJakpAA==")
 
EPTEST>Set sc=##class(Community.Compress).UnDeflate(comp,.uncomp)
 
EPTEST>Write uncomp
my very long string which needs to be deflated

Works fine for me

The code I posted does exactly what you need.

You can compress/decompress with deflate or gzip using device I/O.

Then you can download IRIS community edition that you can use for evaluation.

In the main page of the Developer Community click "Download InterSystems IRIS" in the left of the page.

If you have a support contract, send an email to support@intersystems.com to get your WRC credentials.

Here is a sample method to deflate without using file I/O and using XDEV instead.

ClassMethod UnDeflate(Compressed As %String, Output UnDeflated As %String) As %Status
{
    Set sc=$$$OK
    Try {
        ; open XDEV device
        Set dev="|XDEV|"_+$JOB
        Open dev:($ZF(-6,$$$XSLTLibrary,12):/HOSTNAME="XSLT") Use dev
        ; write compressed string
        Write Compressed
        ; flush buffers
        Write *-3
        ; change device mode to deflate and rewind
        Use dev:(:/COMPRESS="DEFLATE":/POSITION=0)
        ; read uncompressed content
        Read UnDeflated
    } Catch CatchError {
        #dim CatchError as %Exception.SystemException
        Set sc=CatchError.AsStatus()
    }
    Close dev
    Quit sc
}

I really wish that InterSystems implement the various compress/deflate/gzip functionality available in device I/O as utility methods. Without silly wrappers! 😉

Another wish, please InterSystems document XDEV device I/O.

If I understand correctly you need to deflate and I suppose you want to add the custom wrapper to use $System.Util.Decompress(), if so...you can't. I mean you can't use $System.Util.Decompress() BUT, you can indeed deflate using I/O as in the example I posted in that post/thread.

Please check this previous post:

Deflate compression

If you still have questions, reply here for more details.

I agree that I don't like #; as a comment BUT, I prefer ; instead, I'm not a fan of // comments, probably because I'm an old InterSystems user.

Fortunately there is a way to change it, thank you for sharing the details.

Beware that OnFailureTimeout() does not work as expected as described in this post.

The issue is present up to 2023.3 and is fixed in 2024.1.

What problem are you facing configuring system default settings for Ens.Alert component? If should work as any other component.

I suggest to read the relevant documentation for your version:

Defining System Default Settings

and if you find some issue please provide some detail of the specific problem you are facing.

You had 24 errors during compilation, maybe (probably) one of the 24 is the "missing" class.

Can you try to compile that class individually?

If your classes are in deployed mode, then you need the source code that (hopefully) was saved before deploying the classes.