Issue with Dynamically Inserting Service Request Number into Redwood URL

Summary:

I am working on constructing a Service Request Redwood URL to be used in an email template. The template will be triggered via the Apps Composer → Object Workflow. However, I'm facing an issue dynamically fetching the Service Request number. The placeholders &{SrNumber} and ${SrNumber}, used in the URL, are not pulling the correct Service Request number value.

Here are the two versions of the URL I am using:

https://fa-euii-test-saasfaprod1.fa.ocs.oraclecloud.com/fscmUI/redwood/service/ec/container/sr/edit?navigationType=internal&srNumber=&{srNumber}

https://fa-euii-test-saasfaprod1.fa.ocs.oraclecloud.com/fscmUI/redwood/service/ec/container/sr/edit?navigationType=internal&srNumber=${SrNumber}