---
sourceDocument: Zurich API Reference
sourceDocumentLink: https://www.servicenow.com/docs/r/zurich/api-reference

 Release :

    - zurich

ft:locale :

    - en-US

ft:publication_title :

    - Zurich API Reference

ft:clusterId :

    - crapiref

bundleId :

    - crapiref

workflow :

    - Creator


---

# Variable substitution

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

* Release version: Zurich
* 
* Updated July 31, 2025
* 
* ![](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