Purchasing Guides
Master the art of procurement with flexible workflows designed for real-world business scenarios.
🚀 Get Started / Setup
New to purchasing in BigLedger? Start with the standard workflow to learn the full procurement cycle.
Before you begin, ensure:
- Supplier master data is configured in Supplier Maintenance
- Inventory items are set up in Item Maintenance
- Chart of accounts includes purchase expense and tax accounts
- Approval workflows and limits are defined
📝 Daily Tasks
Guides for everyday purchasing operations your team performs.
Standard Workflows
Special Scenarios
⚠️ Common Scenarios / Pitfalls
Watch out for these frequent purchasing issues:
| Scenario | What Happens | How to Handle |
|---|---|---|
| Partial deliveries | Only some items arrive | Create GRN for received quantity, keep PO open for balance |
| Price changed since PO | Invoice doesn’t match PO price | If within tolerance, accept; if significant, get approval first |
| Goods damaged in transit | Stock quality issue | GRN for good items, reject damaged, request credit note from supplier |
| Invoice lost or delayed | Month-end close blocked | Track outstanding GRNs, follow up with supplier, accrue for close |
| Urgent after-hours purchase | No time for standard process | Use Direct GRN workflow, document reason, get retrospective approval |
| Duplicate PO created | Double-ordering risk | Check existing POs before creating new ones; search by supplier |
📊 Reporting Usage
Track your procurement performance and spending health.
Key Purchasing Reports:
- PO Status Report — All POs by status (Draft, Approved, Partial, Complete)
- GRN Pending Report — Outstanding goods not yet received
- Invoice Aging Report — Unpaid supplier invoices by age
- Purchase by Supplier — Spend analysis by supplier
- Purchase by Item — Item-level procurement analysis
- Three-Way Matching Report — Match status across PO, GRN, and Invoice
Reporting tips:
- Check GRN Pending weekly to follow up on late deliveries
- Review Invoice Aging to manage cash flow and payment scheduling
- Use Supplier Spend analysis quarterly for contract negotiations
- Monitor three-way matching rate to identify process issues
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