Design Services Process

What Students Should Learn

• Distinguish customer demand, staffing, approved service hours, monthly billing, payroll expense, and cash settlement in the design-services line.
• Trace a design-service engagement from SalesOrderLine into ServiceEngagement, ServiceTimeEntry, ServiceBillingLine, SalesInvoiceLine, and GLEntry.
• Recognize how multiple employees can support one engagement while billing still rolls up at the customer-engagement level.
• Separate service margin analysis from manufacturing costing and inventory movement.

Business Storyline

Charles River Home Furnishings, Inc. now earns revenue from two customer-facing lines: physical goods and hourly design services. The design-services line is intentionally operational, not decorative. Customers can hire the company for consultation, planning, specification work, and project coordination even when the engagement is not tied to a shipment of finished goods.

The process starts with the same commercial promise as the rest of O2C. Sales records a service order line, operations opens a customer engagement, managers staff that engagement with one or more employees, approved service time accumulates through the month, and accounting bills the approved billable hours at the agreed hourly rate. Treasury and accounting then settle the invoice through the normal cash-receipt and cash-application path.

That distinction matters. An engagement is not revenue. Approved time is not revenue. Revenue appears only when the approved billable hours are invoiced. Payroll expense also remains a normal period expense. Students can see the customer billing side and the labor-cost side together without turning the dataset into project-based actual costing.

Normal Process Overview

Read the main diagram as commercial promise, staffing, approved hours, monthly billing, settlement, and payroll support. The service line shares the customer-side invoice and cash path with the rest of O2C, but it does not require shipment, return, or inventory activity.

Core Tables and What They Represent

Process stage	Main tables	Grain or event represented	Why students use them
Customer demand	SalesOrder, SalesOrderLine	One customer order and ordered service line	Shows the original commercial promise, hourly rate, and planned service hours
Engagement setup	ServiceEngagement	One customer service job tied to one service order line	Anchors customer, service item, lead employee, planned hours, and engagement dates
Staffing	ServiceEngagementAssignment	One employee assignment on one engagement	Shows how many employees supported the same engagement and how hours were assigned
Approved service delivery	ServiceTimeEntry	One approved service-work day for one employee and engagement	Measures billable versus non-billable hours and snapshots labor cost for margin analysis
Monthly billing trace	ServiceBillingLine	One invoiced billing slice for approved hours	Connects approved hours to the exact SalesInvoiceLine used to bill the customer
Customer billing and settlement	SalesInvoice, SalesInvoiceLine, CashReceipt, CashReceiptApplication	Invoice, receipt, and settlement events	Completes the AR and cash path using the normal O2C backbone
Payroll support	PayrollRegister, PayrollRegisterLine	Gross-to-net payroll for the service staff	Keeps payroll expense and liability activity visible beside the customer-billing flow

When Accounting Happens

Event	Business meaning	Accounting effect
Service order and engagement setup	Customer demand is accepted and staffed	No direct posting
Approved service time	Managers approve billable and non-billable hours worked on the engagement	No direct posting
Monthly service invoice	Accounting bills approved billable hours for the period	Debit accounts receivable and credit 4080 Sales Revenue - Design Services plus sales tax payable
Cash receipt and application	Treasury receives customer cash and later settles the invoice	Same customer-deposit and AR-clearing pattern used in O2C
Payroll register	Payroll records the wages and burden for service employees	Debits 6280 Salaries Expense - Design Services and related payroll expense pools, then credits accrued payroll and payroll liabilities

Key Traceability and Data Notes

• ServiceEngagement.SalesOrderLineID is the bridge from customer demand into service delivery.
• ServiceEngagementAssignment lets several employees work on the same engagement while preserving assigned-role detail.
• ServiceTimeEntry stores both BillableHours and NonBillableHours, plus CostRateUsed and ExtendedCost for labor-margin analysis.
• ServiceBillingLine is the authoritative hours-to-invoice bridge for services. Use it instead of trying to infer service billing from SalesInvoiceLine alone.
• Service invoice lines stay in SalesInvoiceLine, but ShipmentLineID remains null for those rows because nothing shipped physically.
• Payroll supports the same employees, but service labor is analyzed through ServiceTimeEntry rather than capitalized into manufacturing inventory.

Analytical Subsections

1. Customer Demand to Engagement Setup

The process begins on the customer side. A service line is created on the sales order, then the operating team opens an engagement that carries planned hours, the lead employee, and the expected delivery window.

Starter analytical question: Which customers create the most planned design-service hours, and how concentrated is that workload?

2. Staffing and Approved Time

Once the engagement is active, the company assigns one or more employees to it. Approved daily service time then accumulates by employee and date. This layer is where students can compare planned hours, assigned hours, billable hours, non-billable hours, and cost snapshots.

Starter analytical question: Which engagements rely most on senior-designer time versus designer time, and where do non-billable hours accumulate?

3. Monthly Billing and Settlement

Billing does not happen every time an employee works. The dataset bills approved billable hours monthly. ServiceBillingLine stores the rolled-up hours for that invoice line, which makes it the main student bridge between approved service delivery and posted customer revenue.

Starter analytical question: Which customers show the biggest difference between approved service hours and billed service hours at month-end?

4. Payroll and Service Margin Interpretation

The same service staff still pass through the normal payroll cycle. That means students should read service profitability in two layers. Billing and receivables live in the customer process. Labor cost and payroll liabilities live in payroll. ServiceTimeEntry.ExtendedCost gives the analytical bridge that lets students compare billed revenue to labor cost without converting the service line into manufacturing cost accounting.

Starter analytical question: Which engagements show the strongest labor margin after comparing billed revenue to the approved time-cost snapshot?

Common Student Questions

• Which customers buy only goods, which buy design services, and which buy both?
• How many employees typically support one design-service engagement?
• Which service hours were billable versus non-billable?
• Which approved hours remain unbilled at the end of the month?
• How do service invoices differ from shipment-based goods invoices?
• Where does payroll expense sit for design staff, and why does that not create manufacturing cost?

Next Steps

• Read O2C when you want the broader customer-demand and settlement cycle around invoices, cash, returns, and working capital.
• Read Payroll when you want the payroll posting, liability, and cash-settlement side of the same service staff.
• Read Commercial and Working Capital or Managerial Reports when you want the service activity summarized as management reporting.
• Read Schema Reference and GLEntry Posting Reference when you need the exact joins and posting rules.