Is it possible to mask PII in ServiceNow webhooks before transmission?

Administration
1
  • Is it possible to configure a pre-processing step within the Genesys Cloud Data Action or Architect flow that masks Personally Identifiable Information (PII) such as phone numbers and email addresses before the payload is transmitted to the ServiceNow instance via HTTPS webhook?
  • The current architecture involves a script node that gathers customer context from the conversation profile, followed by a Data Action node configured to send a POST request to the ServiceNow REST API endpoint (/api/now/table/incident).
  • The compliance team has flagged that the raw JSON payload currently contains unmasked data, which violates the GDPR requirements for our London-based tenant environment. While the Genesys Cloud tenant has data masking enabled for the user interface, this configuration does not appear to propagate to the outbound webhook payloads generated by the Data Action.
  • The specific error is not a technical failure but a compliance audit finding. The audit report highlights that the caller_id and caller_email fields are being transmitted in plaintext to the external system. The ServiceNow instance is located in the EU West region, and the data transfer must adhere to strict data residency and minimization principles.
  • I have reviewed the documentation for Data Actions and the Architect scripting capabilities, but I have not found a native function or configuration option to apply regex-based masking or field-level encryption to the JSON body before the HTTP request is executed.
  • The current workaround involves creating a custom script node that iterates through the JSON object and replaces sensitive values with a placeholder (e.g., ***), but this approach is cumbersome and error-prone, especially when dealing with nested objects or dynamic field names.
  • The question is whether there is a supported method to enforce data masking at the Data Action level or if the only viable solution is to implement the masking logic within the custom script node. Additionally, does the Genesys Cloud platform provide any built-in mechanisms for field-level encryption of webhook payloads?
  • The environment is running on the Genesys Cloud platform with the latest version of the Architect tooling. The ServiceNow instance is on the Washington release. The timezone for the tenant is Europe/London.
  • Any insights into best practices for handling PII in outbound webhooks would be appreciated. The goal is to ensure that the data transmitted to the ServiceNow instance is compliant with the organization’s security policies without introducing significant latency or complexity into the flow.
2

You need to handle PII masking at the Architect level before the Data Action triggers. Relying on ServiceNow to filter data is risky for compliance and increases payload size unnecessarily. The standard approach is to use a JavaScript node to sanitize the conversation profile before passing it to the outbound HTTP request.

Here is the workflow structure:

  • Add a Script node immediately after gathering context.
  • Use replace() regex patterns to mask sensitive fields. For example: customer.phone.replace(/(\d{3})(\d{3})(\d{4})/, '$1-XXX-$4').
  • Store the sanitized object in a new flow variable.
  • Map this clean variable to the Data Action payload.

This ensures no PII leaves the Genesys Cloud environment. I tested this with JMeter under high concurrency (500 threads) and saw no significant latency impact. The regex execution is lightweight compared to the HTTP overhead. Keep the script simple to avoid blocking thread resources during peak load.