Biztalk 2013 - Promoted schema property is getting dropped?

Question

I have configured a WCF-WebHttp BizTalk Request/Response Static pipeline adaptor with the following URL mapping

<BtsHttpUrlMapping>
<Operation Name="Query_ADM" Method="GET" Url="{MYVARIABLE}" />
</BtsHttpUrlMapping>

In the Variable Mapping I have set the variable name MYVARIABLE to a property called id in the defining schema of the message. I have set the property namespace of the defining schema - in the variable mapping - which is also published to the same application.

The id has been promoted in the schema and I can see this promotion if I trace this through the tracked message events.

However at the point there the logical send/receive port sends the message through the physical port - it appears the promotion of the id field is dropped.

There is a transmission failure message with

The adapter failed to transmit message going to send port "MY_PORT" with URL "http://myurl.dev.application.com/api/v2/crm/accounts/". It will be retransmitted after the retry interval specified for this Send Port. Details:"System.ArgumentException: The path variable 'MYVARIABLE' in the UriTemplate must be bound to a non-empty string value.

Everything looks setup okay? Does anyone have any ideas? Thanks.

Here's the schema with promoted (and distinguished) id property field.

Schema

enter image description here

James Rosser James Rosser · Accepted Answer · 2015-02-02T15:44:11

In this case you seem to be using a Distinguished Field, instead of a Property Field. Distinguished fields are only accessible within orchestrations. See here for an explanation.

You need to create a property schema in order to promote your property to a Property Field.

(Make sure you're using an XMLTransmit pipeline on the send part of the WCF-WebHttp port (or any pipeline with an XML assembler component). Otherwise the adapter won't recognise promoted properties in the message.)

Biztalk 2013 - Promoted schema property is getting dropped?

2 Answers