---
sourceDocument: Xanadu API Reference
sourceDocumentLink: https://servicenow-prod.fluidtopics.net/r/xanadu/api-reference

 Release :

    - xanadu

ft:locale :

    - en-US

ft:publication_title :

    - Xanadu API Reference

ft:clusterId :

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bundleId :

    - crapiref

workflow :

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---

# Variable substitution in outbound SOAP

# Variable substitution in outbound SOAP {#ariaid-title1}

* Release version: Xanadu
* 
* Updated August 1, 2024
* 
* ![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read

To use variable substitution, use the format
<kbd class="ph userinput">${&lt;variable_name&gt;}</kbd> instead of defining a specific value.  

    ...
    <short_description xsi:type="xsd:string">${short_desc}</short_description>
    ...

To test variable substitution after you have modified the SOAP envelope with the variables, define values for the variables in the SOAP Message Parameters related list of the SOAP Message Function. For example,
click New and enter the following information:  
Figure 1. Soap message parameters