n8n Workflow: Nexis PII Masking + OpenAI Ticket Summary

Mask PII with Nexis, then summarize support tickets with OpenAI—automatically

This n8n workflow anonymizes support ticket text using Nexis, sends only the masked content to an OpenAI chat model for a one-sentence summary and category, and routes any PII masking failures to a separate review output.

What this workflow does

• Manual run trigger: Start by clicking Execute workflow to generate example support tickets (or swap in your own help desk source).
• Nexis PII masking: For each ticket, the workflow sends the ticket text to n8n-nodes-nexis to mask detected personal data.
• Allow list support: Keep specific terms readable by configuring the allow list in the Nexis anonymization step.
• Failure handling: If Nexis can’t process a ticket, the workflow routes it to a review output with the error details.
• OpenAI ticket summarization: Send the masked ticket text to an OpenAI chat model to produce:
  • a one-sentence summary
  • a category: Billing, Technical, Delivery, or Other
• Outputs: Ticket ID, masked text, count of masked entities, and the AI summary/category.

Use cases

• Help desk ops: prepare safe, privacy-compliant AI summaries for internal review.
• SaaS support teams: categorize inbound tickets (Billing/Technical/Delivery/Other) after anonymization.
• Automation engineers: build an n8n workflow that separates “success” vs “needs review” for PII masking.

Technical details

• Integrations/credentials: n8n-nodes-nexis (Nexis API credential) + OpenAI (chat model credential).
• n8n components: manual trigger, set, code, plus supporting steps for routing and output formatting (including review handling).
• Workflow setup includes selecting the Country/Regulation option for Nexis anonymization and configuring the allow list as needed.