You can use the <comms-transform> tag to extract a sub string from a specific position in a data string. You can specify the length of the string that you want to extract. For example, in case you want to remove special characters from organization names such as trademark symbol, or in case of currency, you might want to extract only the amount without the currency symbol. You can use the Sub String function to extract the exact length of characters from a specific position.

Syntax

 <comms-transform type="substring" start="n" length="n"></comms-transform>

Replace the n in start to specify the start position to extract the sub string from.

Replace the n in length to specify the number of characters including the start of the sub string.

<comms-data>$Data{"Id":"FirstName"}<comms-transform type="substring" start="14" length="9"></comms-transform></comms-data> 

{
    "$$Id": "SubSTringEvent",
    "Fields": [
        {
            "Name": "FirstName",
            "Path": "$.FirstName"
        }
    ]
} 

{"FirstName”:”CommunicationCloudUser”}

FirstName = CloudUser