XMLPORT not creating

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Posted on by GrisuX

Hi ,

I've an XMLPORT whose declaration is :

XmlPort 50008 "MileStone XML"
{
    Direction = Export;
    Encoding = UTF8;
    FormatEvaluate = Xml;
    Format = Xml;
    UseDefaultNamespace = true;
    
    schema
    {
        tableelement(RigheBooking; "righe booking export")
 
XML is created correctly, but is missing the 
 

<?xml version="1.0" encoding="UTF-8"?>
 
any suggestion ?
Is there a way to add automatically ?
 
Fabrizio 

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Dynamics 365 Business Central

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Martin Dráb 239,634 Most Valuable Professional on at

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Moved from Integration, Dataverse, and general topics forum to Small and medium business | Business Central, NAV, RMS forum, because it seems to be about Business Central. Please let me know if you disagree.

Note that the header <?xml version="1.0" encoding="UTF-8"?> is optional (in XML 1.0).

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Pallavi Phade 5,622 Super User 2026 Season 1 on at

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Greetings ,

By default, XMLports use the UTF-8 encoding standard, which is why the XMLport was created successfully. If you require a different encoding, it must be specified in the AL file.

To include the XML declaration header automatically, you can enforce it in your AL file by setting the property below:

Sample Example Below

xmlport 50100 MyXmlport
{
xmldeclaration = true; // Add this line

schema
{
// ...existing code...
}

// ...existing code...
}

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GrisuX 49 on at

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Hi,

Xmldeclaration is not recognized, even if i'm in

IT Business Central 22.1 (piattaforma 22.0.56191.0 + applicazione 22.1.55890.56216)

onprem (but workins as we are in cloud)

i seems that xmldeclaration should be available since :

The XMLDeclaration property for XMLports was introduced in Microsoft Dynamics 365 Business Central 2020 Release Wave 2 (version 17.0).

something wrong with visual studio ?

or XMLdeclaration has been implemented in a newer wave release than 22 ?

Fabrizio

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Pallavi Phade 5,622 Super User 2026 Season 1 on at

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Dear Fabrizio

You are correct — this is not supported. Since I wasn’t certain about the exact version earlier, let me clarify: the XML declaration needs to be appended before exporting. This can be done in a codeunit using the File data type in on-premises installations, or by using a Blob (Temp Blob) approach in the cloud.

If you need code then i can guide you further .

Regards

Pallavi Phade

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Khushbu Rajvi. 22,424 Super User 2026 Season 1 on at

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Hi, I checked your code and noticed the following:

Where are you opening the downloaded file?

If you open the file in Edge or any other browser, you will not see the line <?xml version="1.0" encoding="UTF-8"?>.

If you open the file in Notepad, you will be able to see the <?xml version="1.0" encoding="UTF-8"?>.

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Khushbu Rajvi. 22,424 Super User 2026 Season 1 on at

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Why Diff: When you open the XML in a browser like Edge, the line <?xml version="1.0" encoding="UTF-8"?> is hidden because browsers parse XML as a structured document and only render the element tree, not the processing instructions; however, when you open the same file in a text editor like Notepad, you see the declaration because editors display the raw file content exactly as it is stored.

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Chavda Dharmendra 1,004 Super User 2026 Season 1 on at

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Yes @Khushbu Rajvi., you are right.

I checked and showing same result as you mention.

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YUN ZHU 100,998 Super User 2026 Season 1 on at

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Hi, hope the following helps.

Dynamics 365 Business Central: How to Export and Import Data (Using XMLports)

https://yzhums.com/4809/

Thanks.

ZHU

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Gerardo Rentería Ga... 26,790 Most Valuable Professional on at

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Hi, good day
I hope this can help you, and give you some hints.

Business Central XmlPort: Why the XML Declaration Looks Missing

Best Regards
Gerardo

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GrisuX 49 on at

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Hi,

sorry .. my fault.

My and my colleague were working on the same git repo, and duw to a wrong fetch, he overrided my changes.

The problem was solved adding the

Format = Xml;

at beninning this was not present in the xmlport, but it was when i took the screenshot of the code.

that at beggining was not present.

Many thanks for all the replies

B. regards

Fabrizi o

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