A purchase order can confirm that a customer wants the work. It does not put cash in your bank account.
That distinction matters when a South African SME must pay a supplier, buy stock, cover labour or arrange delivery before the buyer pays. A profitable order can still create a dangerous cash gap if the dates do not line up.
What must leave the business, on which dates, before the buyer’s money arrives?
Use this four-date, four-number map before you commit to delivery.
Start with four dates
Put the dates on one page. Do not leave them in separate emails, supplier quotes and WhatsApp threads.
1. Purchase order confirmed
Record when the order was received and what still needs verification. Check the buyer, order reference, scope, quantities, delivery location, acceptance conditions and authorised contact. A purchase-order funding conversation will generally depend on purchase-order verification and a credit review. A PDF in your inbox is not enough on its own.
2. Supplier payment due
Record when your supplier expects payment. Is it a deposit, payment in full, or staged payment? Does the quote expire? Could the price change before you place the order? If payment is required today but the buyer only pays after delivery, the gap has already started.
3. Delivery due
Record when goods or work must be delivered and accepted. Include the practical steps between supplier payment and buyer acceptance: procurement, production, transport, site access, installation, sign-off and any required delivery note. A delay in one step can push the buyer’s payment date out too.
4. Buyer payment expected
Record the realistic payment date, not only the best-case contractual date. If the contract says 30 days after an accepted invoice, ask when the invoice can actually be submitted and what proof is required. If the buyer has a known payment run, account for it. The gap ends when cleared funds arrive — not when delivery happens.
Then write four numbers
Dates explain when the pressure lands. Numbers explain how much pressure the business must carry.
- A. Supplier or stock cost — what must be paid to secure the goods, material or capacity needed for the order.
- B. Fulfilment cost — labour, logistics, packaging, site work, insurance where applicable, compliance documents and contingency.
- C. Cash safely available — cash the business can commit without missing payroll, rent, tax, existing repayments or ordinary operating costs.
- D. Timing gap — supplier or stock cost plus fulfilment cost, less cash safely available.
Stress-test the buyer’s payment date
Move the expected buyer payment date seven days later. Then 14 days later. Ask what the business would have to keep paying while it waits.
The goal is not pessimism. It is to avoid building a delivery plan that only works if every supplier, vehicle, sign-off and payment happens exactly on time. A useful order should survive a reasonable timing delay without destroying the margin or starving normal operations.
Protect the margin before discussing funding
An order’s headline value is not its profit. Before considering any funding path, subtract the direct supplier and fulfilment costs. Then allow for delays, errors, returns, penalties or additional site work that the contract could create. Funding costs, where applicable, must fit inside the commercial reality of the order rather than turning a busy project into an unprofitable one.
If the need exists only because of one verified order, a purchase-order funding conversation may be closer to the problem. If the business has a recurring gap that exists without a specific order, that is more likely a broader working-capital question. Keep those lanes distinct.
The PO Delivery Gap Map
- Is the purchase order verifiable and the scope clear?
- When must the supplier be paid?
- When must delivery and buyer acceptance happen?
- When is buyer payment realistically expected?
- What is the supplier plus fulfilment cost?
- How much cash can the business safely commit?
- Does the margin still work after a payment delay and applicable funding costs?
If any answer is missing, that missing answer is the next task — not a reason to guess.
Save it. Send it. Say it.
- SAVE the four-date, four-number map for the next order.
- SEND it to the co-founder, bookkeeper or delivery lead who will carry the operational risk.
- SAY which date creates the biggest gap: supplier payment, delivery, acceptance or buyer payment?
A verified order can open a valuable opportunity. Mapping the gap first helps you decide whether the business can deliver it responsibly.
Start with the numbers and the dates
Use the official Ndzinga website to understand the next responsible step.
Thinking about credit?
Start with the facts. Check your eligibility and estimate repayments before you apply — no obligation.
This article is general financial education, not personal financial or legal advice. Credit approval remains subject to affordability assessment, verification, and the applicable Ndzinga Capital credit policy.