Purpose of the lesson
Use production material-requirements plans and warehouse stock-order schedules to prepare accurate, complete and consolidated order schedules for each supplier.
Practical outcome
By the end of this lesson, you must be able to:
- Interpret production material-requirements plans.
- Interpret warehouse stock-order schedules.
- Allocate requirements to approved suppliers.
- Calculate appropriate order dates.
- Prepare an order schedule for each supplier.
- Consolidate compatible requirements.
- Identify procurement constraints and exceptions.
- Validate and submit the final procurement schedule.
1. Gather the required information
Obtain:
- Production material-requirements plan
- Warehouse stock-order schedule
- Approved supplier list
- Supplier agreements and catalogues
- Product and material specifications
- Current inventory information
- Open purchase orders
- Supplier lead times
- Minimum order quantities
- Pack sizes
- Agreed prices
- Delivery calendars
- Supplier capacities
- Required delivery dates
- Procurement approval requirements
- Budget information
Confirm that all source documents cover the same planning period and use the correct product or material codes.
2. Review production material requirements
Examine the material-requirements plan for each production line.
Confirm:
- Production-order reference
- Production line
- Material code
- Material description
- Gross requirement
- Available quantity
- Confirmed incoming stock
- Net requirement
- Required-at-production date
- Approved supplier
- Quality or technical specification
Production requirement example
| Production line | Material | Gross requirement | Available | Confirmed receipts | Net requirement | Required date |
|---|---|---|---|---|---|---|
| Line 1 | Component A | 2,000 | 800 | 400 | 800 | 18 August |
| Line 2 | Packaging B | 1,200 | 300 | 200 | 700 | 20 August |
Do not create another order for quantities already covered by an approved open purchase order.
3. Convert material requirements into supplier-order requirements
Allocate each net requirement to an approved supplier.
Consider:
- Supplier authorisation
- Product specification
- Contract allocation
- Supplier capacity
- Agreed lead time
- Minimum order quantity
- Pack size
- Price
- Quality performance
- Delivery reliability
- Required delivery date
Production-to-supplier schedule
| Supplier | Material | Quantity | Production line | Required delivery date |
|---|---|---|---|---|
| Supplier A | Component A | 800 | Line 1 | 17 August |
| Supplier B | Packaging B | 700 | Line 2 | 19 August |
Schedule delivery early enough to allow receiving, inspection and internal movement before production begins.
4. Review warehouse stock orders
Examine the stock-order schedule received from each warehouse.
Confirm:
- Warehouse or facility
- SKU
- Required quantity
- Current stock position
- Reorder requirement
- Existing purchase orders
- Required delivery date
- Supplier allocation
- Delivery location
Warehouse requirement example
| Warehouse | SKU | Required quantity | Existing order | Net order requirement | Required date |
|---|---|---|---|---|---|
| Johannesburg DC | SKU-101 | 600 | 200 | 400 | 21 August |
| Durban DC | SKU-101 | 300 | 0 | 300 | 23 August |
Verify the calculation and investigate unusual quantities before including them in the procurement schedule.
5. Determine the order date
Work backwards from the required delivery date.
Consider:
- Supplier lead time
- Internal approval time
- Purchase-order processing
- Transport time
- Customs or import requirements
- Receiving and inspection time
- Weekends and public holidays
- Contingency time for critical materials
Use:
Latest order date = Required delivery date − Total procurement lead time
Example:
- Required delivery date: 30 August
- Supplier production time: 7 working days
- Transport time: 3 working days
- Receiving and inspection: 1 working day
Total procurement lead time = 11 working days
Place the order at least 11 working days before the required delivery date.
6. Apply order-quantity rules
Adjust requirements where necessary to comply with:
- Minimum order quantity
- Standard pack size
- Pallet quantity
- Economic order quantity
- Contracted order multiples
- Supplier transport requirements
Example:
- Net requirement: 460 units
- Standard pack size: 50 units
Order 500 units, because 460 cannot be ordered in complete packs of 50.
Record the additional 40 units as expected inventory rather than concealing the difference.
7. Consolidate requirements by supplier
Combine production and warehouse requirements where they relate to:
- The same supplier
- The same product or material
- Compatible delivery dates
- Compatible delivery destinations
- The same contractual conditions
Consolidation example
| Source | Material | Quantity | Required date |
|---|---|---|---|
| Production Line 1 | Component A | 800 | 17 August |
| Johannesburg warehouse | Component A | 400 | 18 August |
| Consolidated requirement | Component A | 1,200 | 17 August |
Use the earliest required date unless separate deliveries provide better operational and cost outcomes.
Consolidation can:
- Reduce administrative work
- Improve transport utilisation
- Meet minimum-order quantities
- Strengthen purchasing leverage
- Reduce duplicated orders
Do not consolidate requirements where this would delay critical materials, exceed storage capacity or create excessive inventory.
8. Prepare the supplier-order schedule
Create a complete schedule for each supplier.
| Supplier | Order date | Material or SKU | Quantity | Delivery location | Required delivery | Price | Order reference |
|---|---|---|---|---|---|---|---|
| Supplier A | 2 August | Component A | 1,200 | Johannesburg plant | 17 August | R50 | PO-3001 |
| Supplier B | 5 August | Packaging B | 700 | Durban plant | 19 August | R12 | PO-3002 |
Include:
- Supplier name and code
- Product or material code
- Description and specification
- Consolidated quantity
- Unit of measure
- Order date
- Required delivery date
- Delivery location
- Agreed price
- Purchase-order reference
- Production line or warehouse
- Contract reference
- Order status
- Special instructions
9. Check budget and order value
Calculate:
Order value = Order quantity × Unit price
If 1,200 units cost R50 each:
Order value = 1,200 × R50 = R60,000
Add relevant transport, taxes or other approved costs where applicable.
Compare the value with:
- Available budget
- Contract limits
- Approval thresholds
- Supplier agreement
- Total planned procurement expenditure
Escalate any budget shortfall or unauthorised price difference.
10. Identify procurement constraints
Check for:
- Insufficient supplier capacity
- Lead time longer than available time
- Minimum-order conflicts
- Budget limitations
- Unapproved suppliers
- Incomplete specifications
- Supplier shutdown periods
- Price discrepancies
- Import or transport delays
- Poor supplier performance
- Duplicate orders
- Delivery-date conflicts
- Limited receiving or storage capacity
Procurement constraint register
| Constraint | Affected requirement | Effect | Corrective action | Responsible person |
|---|---|---|---|---|
| Supplier cannot meet quantity | Component A | Production at risk | Allocate approved backup supplier | Procurement manager |
| Price differs from contract | Packaging B | Budget risk | Obtain corrected quotation | Buyer |
11. Revise the procurement schedule
Where the initial schedule is not feasible:
- Verify the constraint.
- Identify affected production or warehouse requirements.
- Determine the operational and cost effect.
- Investigate approved alternatives.
- Select and authorise the corrective action.
- Revise the supplier-order schedule.
- Communicate the change.
- Monitor the revised order.
Possible actions include:
- Expedite the order.
- Use an approved alternative supplier.
- Split the order between suppliers.
- Negotiate phased deliveries.
- Transfer available stock.
- Adjust the order quantity.
- Use an approved alternative product.
- Revise the production or replenishment schedule.
12. Validate the final order schedules
Before releasing an order schedule:
- Reconcile it with production and warehouse requirements.
- Verify all product and material codes.
- Check quantities and units of measure.
- Confirm that existing orders have been considered.
- Verify supplier authorisation.
- Confirm prices and contract terms.
- Recalculate order and delivery dates.
- Check minimum quantities and pack sizes.
- Confirm budget and approval.
- Check delivery locations and instructions.
- Resolve or record outstanding exceptions.
- Obtain the required authorisation.
The final schedules must be accurate and complete for every supplier.
13. Monitor supplier orders
After placing the orders:
- Obtain supplier acknowledgement.
- Confirm quantities and delivery dates.
- Track production or preparation progress.
- Monitor transport status.
- Record delays or shortages.
- Update production and warehouse teams.
- Expedite critical orders where authorised.
- Confirm delivery and receipt.
- Record supplier performance.
- Close completed orders.
Order-tracking schedule
| Purchase order | Supplier | Required date | Confirmed date | Current status | Exception | Action |
|---|---|---|---|---|---|---|
| PO-3001 | Supplier A | 17 August | 17 August | In production | None | Monitor |
| PO-3002 | Supplier B | 19 August | 21 August | Delayed | Production risk | Expedite |
Practical task
You are provided with a case study containing a stock-replenishment plan and production material requirements.
Complete the following:
- Review the production material-requirements plan.
- Translate the production requirements into order requirements by supplier.
- Review the warehouse stock-order schedule.
- Translate warehouse requirements into order requirements by supplier.
- Check existing purchase orders and available stock.
- Apply lead times, minimum quantities and pack sizes.
- Consolidate compatible requirements for each supplier.
- Calculate the value of each planned order.
- Identify and resolve procurement constraints.
- Prepare the final order schedule for every supplier.
- Validate and submit the schedules.
Required evidence
Include the following in your Portfolio of Evidence:
- Source production material-requirements plan
- Source warehouse stock-order schedule
- Supplier and contract information used
- Lead-time and order-date calculations
- Order-quantity calculations
- Initial order requirements
- Consolidated supplier-order schedules
- Order-value and budget checks
- Procurement constraint register
- Revised schedules, where applicable
- Evidence of approval
- Supplier confirmations or tracking records
- Completed observation checklist
- Learner declaration of authenticity
Competence checklist
| Assessment criterion | Competent | Not yet competent | Comments |
|---|---|---|---|
| Interpret the production material-requirements plan | |||
| Translate production requirements into supplier-order schedules | |||
| Interpret warehouse stock-order schedules | |||
| Translate warehouse requirements into supplier-order schedules | |||
| Account for existing purchase orders and available stock | |||
| Determine appropriate quantities and order dates | |||
| Consolidate compatible requirements by supplier | |||
| Identify and resolve procurement constraints | |||
| Produce accurate and complete schedules for every supplier | |||
| Validate and obtain approval for the schedules | |||
| Submit complete supporting evidence |
Lesson Summary
To prepare procurement and supply schedules, translate production material requirements and warehouse stock orders into supplier-specific purchasing requirements. Account for stock, open purchase orders, lead times, minimum quantities, pack sizes, prices and required delivery dates. Consolidate compatible requirements without delaying critical materials or creating unnecessary inventory. Resolve supplier, budget and delivery constraints, validate each schedule and monitor approved orders through to receipt. Retain the calculations, schedules, approvals and tracking records as practical evidence.