Tool Request Approval — Case Study
Client: Internal Operations
Industry: Workflow Automation

The Challenge
Teams submitting tool access requests were stuck in email threads and manual follow-ups. Approvers had no single place to review requests, employees had no visibility into status, and operations leads could not trust that every decision was logged consistently.
The process needed to start where employees already provide structured input — a Typeform submission — then route instantly to an approver without anyone copying data into spreadsheets or chasing updates in chat.
Accept and reject decisions had to update a shared Excel sheet for reporting while notifying the team in Slack. Both paths needed to fire webhooks reliably, handle edge cases, and close the loop with a confirmation message — all without manual tracking.
The Solution
ZadionLabs built an automated tool request approval workflow on n8n. When an employee submits a request via Typeform, a webhook triggers the n8n workflow — saving the submission to an Excel sheet with Pending status and sending a Slack message to the approver with interactive Accept and Reject buttons.
Each Slack button triggers a dedicated webhook back into n8n. The Accept path updates the Excel row to Approved; the Reject path updates it to Rejected. Both branches converge on a final Slack confirmation sent to the channel so the decision is visible to the team immediately.
The workflow diagram covers the full lifecycle: Typeform intake → n8n trigger → Excel log → Slack notification → approver action → status update → Slack confirmation. REST API calls connect Typeform, Excel, and Slack through n8n nodes with no manual handoffs between steps.
Delivery took two weeks: workflow mapping and webhook architecture in days 1–3, n8n build with Excel and Slack integrations in week one, button handlers and error paths in week two, then testing and production handoff.
Results
Delivery timeline
2 weeks
Manual steps removed
100%
Integrations
4 connected
Approval paths
Accept + Reject
Tech Stack
- n8n
- Typeform
- Slack
- Excel
- REST API
- Webhooks




