case study
How We Automated Employee Timesheet Processing for a Digital Marketing Agency
A 15-person agency was losing 20+ hours monthly on manual timesheet collection. Here's exactly what we built, how it works, and what it changed.
The problem
A digital marketing agency with 15 employees was spending over 20 hours every month on timesheet administration. The manual process looked like this:
- Employees filled out Google Forms with their weekly hours
- Managers reviewed and approved each submission individually
- The ops manager copy-pasted data into a master spreadsheet
- Finance manually calculated totals and prepared payroll data
- Discrepancies triggered endless email threads
This was error-prone, frustrating for everyone involved, and consumed management time that should have been spent on client work.
What we built
A fully automated Slack→Google Sheets→Payroll pipeline using n8n. Here's the flow:
timesheet automation — 15 employees, weekly
Slack Reminder
Friday 4 PM
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Interactive Form
Slack modal
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Auto-Validation
Rules check
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Manager Approval
Slack buttons
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Payroll Prep
CSV generation
Technical stack
- n8n – Orchestration engine
- Slack API – Employee interaction & notifications
- Google Sheets API – Data storage & manipulation
- PostgreSQL – Audit logging & state management
- Custom validation – Business rules enforcement
The results
measured results — first month
95% reduction in timesheet-related admin work
Payroll processing time: 8 hours → 30 minutes
100% on-time submission (was 60%)
Zero data entry errors since launch
Employee satisfaction: 2/5 → 4.5/5
100+ monthly emails about timesheets eliminated
Ongoing benefits
- Real-time visibility into project hours vs. budget
- Automated alerts when projects approach budget limits
- Historical data for capacity planning & client billing
- Complete audit trail for compliance requirements
The client's reaction
"I was skeptical we could automate something this nuanced, but the team at GetMicroservices understood our exact workflow and built something that feels like magic. What used to be a monthly headache is now completely hands-off. We're already looking at what else we can automate."