About This Automation Creating and sending invoices manually is slow and error-prone, especially when billing rules vary by client and retainer credits must be applied.
Automation extracts billable hours, applies the correct client rates and billing rules, calculates invoice amounts with retainer credits, and creates invoices in the accounting system.
Key features:
Extract timesheet hours automatically by project and team member for each billing period Look up client rates and billing rules from contracts and apply them to each invoice Calculate invoice amounts with retainer credits, discounts, and multi-currency conversions Create invoices in your accounting system with all line items and due dates pre-filled Send invoices to clients automatically and log them in a tracking system Monitor payment status and flag overdue invoices for follow-up Top friction points when done manually The issues teams report most often with this process
# Friction point Companies Report This 1 Manual rate verification
Bookkeeper must cross-check each client contract to confirm rates, discounts, and billing method, introducing errors and delays.
80% 2 Spreadsheet-based calculations
Invoice amounts are calculated manually in spreadsheets, risking formula errors and inconsistent application of retainer credits.
67% 3 Manual invoice data entry
Each invoice is typed individually into the accounting system, consuming time and introducing transcription errors.
53% 4 Email lookup and sending
Client email addresses are looked up manually or from contact lists, slowing distribution and risking wrong recipient.
40% 5 Weekly payment status checks
Finance staff manually review unpaid invoices and send reminder emails, a reactive process that delays collections.
26%
Disclaimer All data is based on anonymized FullSpec mapping sessions and proprietary industry research. Learn more Automation readiness How well-suited this process is for automation
Process Pain Score™ Manual rate verification and invoice creation are error-prone bottlenecks that. 8.6 / 10
AI Fit Rating™ Timesheet extraction, rate lookup, and invoice generation are highly structured. 9.1 / 10
Automation Lift Index™ Automation cuts invoicing time by 86% and improves on-time delivery from 82% to. 8.7 / 10
Hidden Overhead™ Context switching between timesheet, contract, spreadsheet, and accounting. 7.3 / 10
How The Automation Works The full workflow, from trigger to completion.
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1. Billing cycle date or timesheet approval trigger
Automation is triggered when the billing cycle date arrives or when timesheets are marked approved in the source system.
2. Fetch timesheet and client data
The automation pulls billable hours from the timesheet system and retrieves client billing rules, rates, and contact details.
3. Calculate invoice amounts
The automation applies rates, discounts, and retainer credits to the extracted hours and generates line items with totals.
4. Create invoice
The calculated invoice is automatically created with client details, line items, amounts, and due date.
5. Send invoice
The invoice is exported and sent automatically to the client email address with a standard message.
6. Log invoice and notify team
Invoice details are logged to a tracking sheet and a notification is sent to the finance team for visibility.
Most popular tool stack used — the complete tool combinations companies use Disclaimer All data is based on anonymized FullSpec mapping sessions and proprietary industry research. Learn more What you get when you map this process Everything you need to understand, plan, and build your automation.
ROI and business case What this process costs today and what changes once it's automated.
Launch schedule What gets built, in what order, and what success looks like once it's live.
Process runbook How the automation runs day to day, including exceptions and human decision points.
Developer handover pack Full build spec, logic, and configuration — ready to hand off without a briefing call.
Integration and connections guide Every tool connection, credential, and data mapping the build needs.
Test and QA plan Every scenario checked and signed off before the automation goes live.
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View Frequently asked questions Everything you need to know before mapping this process.
What happens if a client has a custom billing rule or one-off discount? The automation applies rules stored in your CRM or contract database. For exceptions, the invoice is flagged for manual review before sending, ensuring your finance team maintains control over non-standard scenarios.
Do we still need a person to approve invoices before they go out? Will this work with our existing timesheet and accounting tools? What happens to invoices that are already in the system? How does the system handle retainer billing and credits? View more FAQs 
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