FIXML over FIX format

Imported from previous forum

I understand that I can use XmlDataLen(212) and XmlData(213) tags in the standard header to embed the XML message that I want to transmit. Will this message need the body or since we have the message in XmlData, the body can be omitted.

Can someone also point me to the document where this issue is mentioned?

Thanks

You have not mentioned what version of FIX you shall be using. For FIX versions 4.3 onwards, you can use ^35=n^ (XML_non_FIX) and its body is empty

http://fixprotocol.org/FIXimate3.0/en/FIX.4.3/body_5255110.html

I understand that I can use XmlDataLen(212) and XmlData(213) tags in the
standard header to embed the XML message that I want to transmit. Will
this message need the body or since we have the message in XmlData, the
body can be omitted.

Can someone also point me to the document where this issue is mentioned?

Thanks

Thanks. Fix version 4.4 and it has XML_non_FIX message but my quickfix engine is not recognizing the message. It throws a “Invalid msg type” back at me.

Fix?

You have not mentioned what version of FIX you shall be using. For
FIX versions 4.3 onwards, you can use ^35=n^ (XML_non_FIX) and its

http://fixprotocol.org/FIXimate3.0/en/FIX.4.3/body_5255110.html

I understand that I can use XmlDataLen(212) and XmlData(213) tags in
the standard header to embed the XML message that I want to transmit.
Will this message need the body or since we have the message in
XmlData, the body can be omitted.

Can someone also point me to the document where this issue is
mentioned?

Thanks