Expense Approval Router for Agencies
An AI agent that handles expense approval routing for finance teams in agencies & consultancies businesses. Triggered by new form submission, it classifies and categorises, routes tasks to the right person, sends notifications, with human approval on every output.
Expense approvals often bottleneck on a single manager's inbox. This agent applies policy rules instantly, auto-approves routine items, and routes exceptions to the right approver — cutting turnaround from days to minutes.
Ideal For
- Finance managers
- Accountants
- CFOs
- Teams in agencies & consultancies
Data Sources
- Spreadsheet (Google Sheets, Excel)
- Slack / Teams
- Accounting system (Xero, QuickBooks)
Trigger
Workflow starts when: New form submission
Collect Data
Retrieve data from: Spreadsheet (Google Sheets, Excel), Slack / Teams, Accounting system (Xero, QuickBooks)
Classify / Categorize
Perform: classify / categorize on the collected data
Route task to person
Perform: route task to person on the collected data
Send notification
Perform: send notification on the collected data
Human Review
Human approval: Always approve final output
Complete & Log
Log activity, update records, and close the workflow
If: Amount is below auto-approval threshold
Then: Approve automatically and log
If: Amount exceeds department budget remaining
Then: Route to department head for override
If: Expense category is flagged (e.g. entertainment)
Then: Require additional justification
If: Submitter has multiple pending requests
Then: Bundle for batch review
If: Action involves financial data or PII
Then: Require manager approval before proceeding
Never expose API keys or credentials in outputs
Only perform actions within defined workflow scope
Maintain formal, business-appropriate language
Log all actions for audit trail
Mask PII in logs and outputs
Require explicit approval for irreversible actions
Never send external communications without approval
- If the designated approver is on leave, route to their backup approver
- If no approval is received within 48 hours, send a follow-up reminder
- If the expense policy is ambiguous for the request, route to finance controller
- If no human response within 4 hours, send reminder and escalate to backup
- If error occurs with sensitive data, halt workflow and alert security team
- Log all exceptions with full audit trail for compliance
- Tasks processed per day
- Error/failure rate
- Average approval turnaround time
- Auto-approval rate (within policy)
- Policy violation detection rate
- Human intervention rate
System Prompt
You are a Finance AI assistant specialized in expense approval routing. ## Your Role You help finance teams by automating expense approval routing tasks. Your communication style is professional. ## Capabilities You can: classify / categorize, route task to person, send notification. ## Guidelines - Always be accurate and verify data before acting - Flag uncertain cases for human review - Maintain professional tone - Never make promises or commitments on behalf of the organization - Respect data privacy and confidentiality - Log all significant actions for audit purposes ## Constraints - Only access data sources explicitly provided - Do not perform actions outside your defined scope - Escalate edge cases rather than guessing - Require approval for all external communications - Apply strict data handling protocols
Starter User Prompt
Process this form submission: [INSERT DATA HERE] Perform expense approval routing according to your guidelines. Provide: 1. Classification/analysis 2. Recommended action 3. Draft output (if applicable) 4. Any flags or concerns
Handoff Prompt
This task requires human attention. Here is what I have processed: ## Summary [Brief description of what was done] ## Analysis [Key findings and classification] ## Recommended Action [What should happen next] ## My Concerns [Any flags, uncertainties, or edge cases] Please review and respond when available. Please review and advise how to proceed.
# Expense Approval Router - Standard Operating Procedure ## Purpose This SOP defines how the Expense Approval Router operates within the organization. ## Trigger New form submission ## Data Sources - Spreadsheet (Google Sheets, Excel) - Slack / Teams - Accounting system (Xero, QuickBooks) ## Process Steps 1. Classify / Categorize 2. Route task to person 3. Send notification ## Human Oversight Always approve final output ## Escalation Path 1. Agent flags issue 2. Notification sent to assigned reviewer 3. If no response in 4 hours, escalate to backup 4. Log all escalations ## Review Schedule Monthly review of agent performance and rules
- 1Define access credentials for all data sources
- 2Set up automation platform (n8n/Zapier)
- 3Configure AI API access (OpenAI/Claude)
- 4Create trigger workflow
- 5Connect input data sources
- 6Implement classify / categorize step
- 7Implement route task to person step
- 8Implement send notification step
- 9Configure human review/approval workflow
- 10Set up notification channels for reviews
- 11Test with sample data
- 12Configure error handling and alerts
- 13Set up logging and monitoring
- 14Document and train team
- 15Deploy to production
- 16Schedule first review
n8n Workflow
## n8n Workflow Outline ### Trigger Node - Type: New form submission - Configuration: Set up webhook/schedule/email trigger ### Input Nodes - Spreadsheet (Google Sheets, Excel): HTTP Request or native integration node - Slack / Teams: HTTP Request or native integration node - Accounting system (Xero, QuickBooks): HTTP Request or native integration node ### Processing Nodes 1. OpenAI Node: Classify / Categorize 2. Function/HTTP Node: Route task to person 3. Function/HTTP Node: Send notification ### Approval Node - Wait Node with Slack/Email notification - Resume on approval webhook ### Output Nodes - Update destination systems - Send notifications - Log activity
Zapier Zap
## Zapier Workflow Outline ### Trigger (Zap starts when...) - New form submission ### Data Lookup Steps - Search/Lookup in Spreadsheet (Google Sheets, Excel) - Search/Lookup in Slack / Teams - Search/Lookup in Accounting system (Xero, QuickBooks) ### Action Steps 1. ChatGPT by Zapier: Classify / Categorize 2. App Action: Route task to person 3. App Action: Send notification ### Approval Path - Use Paths or Delay Until to pause for approval - Send notification via Slack/Email ### Final Actions - Update records - Send completion notification
Example Use Cases
- •Auto-approve small expenses within policy and batch larger ones for manager review
- •Route cross-department expenses to the correct budget holder
- •Generate a monthly expense compliance summary for the finance controller
Tools Needed
Frequently Asked Questions
What does the Expense Approval Router do?
An AI agent that handles expense approval routing for finance teams in agencies & consultancies businesses. Triggered by new form submission, it classifies and categorises, routes tasks to the right person, sends notifications, with human approval on every output.
What tools do I need to implement this?
You'll need n8n or Zapier (workflow automation), OpenAI API or Claude API (AI processing), Google Sheets, Airtable. Most implementations use n8n or Zapier as the workflow automation layer.
How long does implementation take?
A basic implementation typically takes 1-2 days for simple workflows, or 1-2 weeks for complex integrations with multiple data sources.
How do I handle errors and edge cases?
The blueprint includes exception handling rules and escalation paths. Configure alerts for failures and set confidence thresholds for human review.
What level of technical skill is needed?
Basic familiarity with workflow automation tools (Zapier/n8n) is helpful. No coding is required for most implementations, though API integration experience helps for advanced setups.
Best For
- •Approvals bottleneck on one or two managers
- •Policy compliance is hard to enforce manually
- •Your team handles 30+ expense requests per month
Not Ideal For
- •Expense volume is very low (<10/month)
- •Approval rules change frequently and unpredictably
- •A personal conversation is required for most expense decisions
Review Before Launch
- All integrations tested with real credentials
- Error handling and retry logic configured
- Notification channels set up for alerts
- Team trained on reviewing exceptions
- KPI dashboard configured
- Rollback plan documented
Ready to implement your Expense Approval Router? Use this blueprint to guide your setup in n8n, Zapier, or your preferred automation platform.
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