Purchasing Guides
Master the art of procurement with flexible workflows designed for real-world business scenarios. Not every purchase follows the same path, and BigLedger supports multiple purchasing approaches to match your business needs.
Understanding Purchasing Workflows
Different businesses require different purchasing approaches based on their industry, supplier relationships, and operational requirements. BigLedger provides flexibility to handle:
- Full procurement cycle with purchase orders, goods receipt, and invoice matching
- Simplified workflows that skip unnecessary steps
- Special scenarios like consignment stock and prepayments
- Emergency purchases requiring expedited processing
Available Purchasing Workflows
Standard Workflows
Special Scenarios
Workflow Selection Guide
Choose the right workflow for your situation:
| Your Situation | Recommended Workflow | Key Benefits |
|---|---|---|
| Standard supplier purchases with planned orders | Standard Procurement | Full audit trail, budget control, three-way matching |
| Walk-in purchases from local suppliers | Direct GRN | Fast processing, immediate stock receipt |
| Service purchases, utilities, subscriptions | Direct Invoice | No stock tracking needed, simple processing |
| Goods delivered before invoice arrives | Standard Procurement | Track receivables, match invoice later |
| Invoice arrives first (prepayment required) | Invoice-First | Manage prepayments, track pending delivery |
| Consignment stock from suppliers | Consignment Purchasing | Pay only for what you use, better cash flow |
Core Purchasing Concepts
Three-Way Matching
The standard procurement process uses three-way matching to ensure accuracy:
- Purchase Order (PO) - What you ordered and the agreed price
- Goods Received Note (GRN) - What you actually received
- Purchase Invoice - What the supplier is charging you
The system automatically compares these three documents to identify:
- Quantity discrepancies (ordered 100, received 95)
- Price differences (agreed $10, invoiced $12)
- Missing items or over-deliveries
Document Flow Overview
Standard Flow:
Purchase Requisition → Purchase Order → Goods Receipt → Purchase Invoice → Payment
(Optional) (Required) (Required) (Required) (Required)
Simplified Flows:
Direct GRN: Goods Receipt → Purchase Invoice → Payment
Direct Invoice: Purchase Invoice → PaymentKey User Roles
Different team members handle different parts of the purchasing process:
Purchasing Admin
- Creates and manages purchase orders
- Coordinates with suppliers
- Manages supplier relationships
- Monitors procurement compliance
Warehouse Staff
- Receives goods deliveries
- Verifies quantities and quality
- Scans serial numbers
- Updates stock locations
- Creates goods received notes
Accounts Payable
- Processes supplier invoices
- Performs three-way matching
- Handles payment processing
- Resolves invoice discrepancies
- Maintains supplier accounts
Essential Setup Requirements
Before processing purchases, ensure these are configured:
1. Supplier Master Data
- Supplier accounts with complete information
- Payment terms and conditions
- Tax registration details
- Bank account information
- Contact persons and communication channels
2. Inventory Items
- Item master data for purchased goods
- Default suppliers and lead times
- Reorder points and quantities
- Standard costs and price history
- Storage locations and bin allocations
3. Chart of Accounts
- Purchase expense accounts
- Asset accounts for capital items
- Tax accounts (input tax/VAT)
- Accrual accounts for goods-in-transit
- Prepayment accounts
4. System Configuration
- Approval workflows and limits
- Document numbering sequences
- Default tax codes
- Tolerance levels for matching
- Notification settings
Integration with Other Modules
Purchasing integrates seamlessly with:
- Inventory Module - Stock updates and warehouse management
- Financial Accounting Module - Purchase accounting and AP
- Fixed Assets Module - Capital equipment purchases
- Project Accounting Module - Project-specific procurement
Document Management
Every purchasing transaction requires proper documentation:
Documents to Upload
- Purchase Orders - Original PO sent to supplier
- Delivery Orders (DO) - Supplier’s delivery note
- Packing Lists - Detailed item listing
- Purchase Invoices - Supplier’s invoice
- Quality Certificates - For regulated items
- Inspection Reports - Quality control documentation
Common Purchasing Scenarios
Scenario 1: Regular Inventory Replenishment
Workflow: Standard Procurement Process: Create PO from reorder point → Receive goods → Match invoice → Pay supplier
Scenario 2: Emergency Purchase from Local Supplier
Workflow: Direct GRN Process: Purchase goods → Bring to warehouse → Create GRN → Enter invoice → Pay
Scenario 3: Professional Services
Workflow: Direct Invoice Process: Receive service invoice → Review and approve → Process payment
Scenario 4: Import with Prepayment
Workflow: Invoice-First Process: Receive proforma invoice → Make prepayment → Track shipment → Receive goods → Settle final invoice
Scenario 5: Consignment Stock Agreement
Workflow: Consignment Purchasing Process: Receive consignment goods → Use items as needed → Process monthly consumption invoice
Approval Hierarchies
Configure approval limits based on purchase value and type:
| Purchase Value | Approver | Processing Time |
|---|---|---|
| < $1,000 | Supervisor | Immediate |
| $1,000 - $5,000 | Department Manager | 1 business day |
| $5,000 - $25,000 | Finance Manager | 2 business days |
| $25,000 - $100,000 | CFO | 3 business days |
| > $100,000 | CEO/Board | 5 business days |
Key Performance Indicators
Track these metrics to optimize purchasing:
Efficiency Metrics
- PO Processing Time - Time from requisition to PO issuance
- Receipt Accuracy - Percentage of GRNs matching PO
- Invoice Matching Rate - Percentage of clean three-way matches
- Approval Cycle Time - Average time in approval workflow
Financial Metrics
- Cost Savings - Negotiated savings vs. list price
- Payment Terms Compliance - Early payment discount capture
- Invoice Error Rate - Percentage requiring adjustment
- Supplier Performance - On-time delivery and quality metrics
Compliance Metrics
- PO Coverage - Percentage of spend with PO
- Contract Compliance - Purchases under contract
- Audit Trail Completeness - Documents attached to transactions
- Approval Compliance - Purchases within approval limits
Common Issues and Solutions
Issue: Partial Deliveries
Solution: Use the Standard Procurement Workflow. Create GRN for received quantity, keep PO open for balance.
Issue: Price Changed Since PO
Solution: If within tolerance, accept invoice. If significant, get approval before processing.
Issue: Goods Damaged in Transit
Solution: Create GRN for good items, reject damaged items, request credit note from supplier.
Issue: Invoice Lost or Delayed
Solution: Track outstanding GRNs, follow up with supplier, accrue for month-end close.
Issue: Urgent Purchase After Hours
Solution: Use Direct GRN workflow, document reason, get retrospective approval.
Next Steps
For Daily Operations
Explore the detailed daily task guides:
- Purchasing Overview - Quick reference for daily purchasing
- Creating Purchase Orders - Detailed PO creation guide
- Goods Received Note - GRN processing procedures
- Purchase Invoice Processing - Invoice matching and approval
For Implementation
Review the module documentation:
- Purchasing Module Overview - Complete module capabilities
- Supplier Maintenance - Supplier master data setup
- Inventory Item Maintenance - Item master for purchasing