Create Purchase Order Skill

Create Purchase Order Skill

Creates a purchase order (PO) record in the NexERP system. A purchase order represents goods/​services to be ordered from a supplier.

Usage

python main.py \
  --supplier-name "ACTION BOLT" \
  --order-date "2025-10-26" \
  --items '[{"product_name": "WIRE D1.2", "quantity": 100, "unit_price": 10.50}]' \
  --json

Required Fields

• --supplier-name: Supplier name (fuzzy match supported)
• --order-date: Order date (YYYY-MM-DD format)
• --items: JSON array of line items

Item Fields

Each item must have:

• product_name: Product name or SKU (fuzzy match supported)
• quantity: Quantity to order (positive number)
• unit_price: Price per unit

Optional item fields:

• discount: Line discount percentage (0-100)
• remark: Line item remark/​notes

Optional PO Fields

• --supplier-ref: Supplier's reference number
• --expiry-date: PO expiry date (YYYY-MM-DD)
• --tax-rate: Tax rate as decimal (default: 0.06 for 6% tax)
• --remark: PO remark/​notes

Output

Returns JSON with PO details:

{
  "success": true,
  "po_number": "PO25100036",
  "txn_id": 2126,
  "supplier": "ACTION BOLT & NUTS SDN BHD",
  "order_date": "2025-10-26",
  "items_count": 1,
  "subtotal": 1050.00,
  "tax": 63.00,
  "grand_total": 1113.00,
  "status": "Pending"
}

Error Handling

Returns error JSON if:

• Supplier not found (suggests alternatives)
• Product not found for any item
• Invalid date format
• Invalid amounts or quantities
• Database connection fails

Database Tables

Writes to 3 tables:

1. tbl_porder_txn - PO header
2. tbl_porder_item - Line items
3. tbl_porder_movement - Stock movement tracking

Document Number Format

PO numbers follow pattern: PO{YY}{MM}{NNNN}

• Example: PO25100036 = October 2025, PO #36

Business Rules

• Supplier must exist and be active (Status_i = 1)
• Products must exist in tbl_product_code
• Order date must be valid date format
• Quantities must be positive
• Amounts rounded to 2 decimal places
• Default tax rate: 6% (for purchase orders)
• PO status defaults to 'P' (Pending)
• Automatic calculation: SubTotal + Tax = GrandTotal

PO Status Values

• P: Pending (default)
• A: Approved
• C: Confirmed
• R: Received
• X: Cancelled

Integration

This skill is called by the Database Agent when processing purchase order documents.

Examples

Single Item PO

python main.py \
  --supplier-name "ACTION" \
  --order-date "2025-10-26" \
  --items '[{"product_name": "WIRE D1.2-L105.8", "quantity": 100, "unit_price": 10.50}]' \
  --json

Multi-Item PO with Expiry Date

python main.py \
  --supplier-name "NINGBO" \
  --order-date "2025-10-26" \
  --expiry-date "2025-11-26" \
  --supplier-ref "REF-2025-ABC" \
  --items '[
    {"product_name": "WIRE D1.2", "quantity": 200, "unit_price": 5.00},
    {"product_name": "BOLT M10", "quantity": 1000, "unit_price": 0.50, "discount": 15}
  ]' \
  --remark "Urgent order - deliver by Nov 15" \
  --json

With Custom Tax Rate

python main.py \
  --supplier-name "Dell" \
  --order-date "2025-10-26" \
  --items '[{"product_name": "Laptop", "quantity": 5, "unit_price": 3500.00}]' \
  --tax-rate 0.08 \
  --json

Testing

# Test with verbose output
python main.py --supplier-name "ACTION" --order-date "2025-10-26" \
  --items '[{"product_name": "WIRE", "quantity": 50, "unit_price": 10.00}]' \
  --verbose --json

# Test error handling (invalid supplier)
python main.py --supplier-name "XYZ_NONEXISTENT" --order-date "2025-10-26" \
  --items '[{"product_name": "WIRE", "quantity": 50, "unit_price": 10.00}]' \
  --json

Exit Codes

• 0: Success
• 1: Error (invalid input, database error)
• 2: Not found (supplier/​product not found)