Order Confirmation
An order confirmation is a commercial document with which the seller bindingly confirms a received customer order and puts the agreed terms in writing – items, quantities, prices, delivery and payment conditions. In sales, it marks the transition from a quote to a binding order.
An order confirmation is a commercial document with which a seller confirms in writing to a customer that they have accepted the order and will fulfil it on the stated terms. It records the key data of the deal: the items ordered, quantities, unit and total prices, the promised delivery date as well as delivery and payment conditions. In doing so, the order confirmation creates clarity on both sides and documents what buyer and seller have agreed on.
From a legal perspective, the order confirmation is often the acceptance of an offer and therefore the moment a sales contract comes into being. Within the sales process it sits between the quote and order processing: an unbinding enquiry or quote becomes a binding order through the customer’s purchase order and the seller’s confirmation, which is then fulfilled via delivery note and invoice. In the ERP system, the order confirmation is generated automatically from the recorded order and forms the first outgoing document in a seamless document chain.
At a glance
- Binding confirmation of a customer order by the seller
- Records items, quantities, prices, delivery date and payment terms
- Usually the acceptance of contract – the sales contract comes into being
- The link between quote and order processing
- The first outgoing document, generated automatically from the order in the ERP
What is an order confirmation and what is it for?
The order confirmation – often abbreviated to OC – is the seller’s written reply to an incoming order. It signals to the customer: the order has arrived, it is being accepted and will be fulfilled on the terms listed. In doing so it serves two functions at once. Commercially, it documents the consensus on the content of the deal and prevents misunderstandings about quantity, price or date. Legally, in many cases it represents the acceptance of an offer and makes the sales contract effective.
The document is sent from the supplier to the ordering party and is the counterpart to the customer’s purchase order. Especially in B2B business, where larger quantities, individual prices and fixed delivery dates are involved, the order confirmation is an important anchor of trust and security: both sides have an agreed position they can rely on should discrepancies arise later.
Components of an order confirmation
A complete order confirmation contains the information needed to clearly identify and fulfil the order. This includes the full addresses of seller and customer, a unique document number and date, the reference to the customer’s purchase order as well as the individual order line items with item number, description, quantity, unit price and line total. This is complemented by the total amount, tax breakdown, delivery and payment conditions and the promised delivery date.
Because the order confirmation acts as a declaration of intent, the accuracy of this information matters. If it deviates in content from the order – for example through a different price or date – it may legally count as a new offer that the customer must first accept. Cleanly maintained master data ensures that prices, terms and addresses are automatically taken over correctly.
Mandatory and optional details
Mandatory are all details that determine the content of the contract: parties, line items, prices, quantity and dates. Beyond that, many order confirmations contain supplementary information such as contact person, customer number, shipping method, partial deliveries or a reference to the applicable general terms and conditions. Unlike the invoice, the order confirmation itself has no legally required mandatory details under VAT law; it is a commercial document, not a tax document.
The order confirmation in the sales process
In a typical sales flow, the order confirmation sits at a clearly defined point. It begins with an enquiry or a quote from the seller, to which the customer responds with a purchase order. The seller then checks availability, prices and, where applicable, creditworthiness and confirms the order – verbally, by email or precisely with a formal order confirmation. Only after that does the actual order processing begin, with reservation, picking, shipping and invoicing.
Whether a written order confirmation is created at all depends on the business model. In standardised online retail, an automatic order acknowledgement email often replaces the classic OC; in B2B trade and in project business with individual terms, the formal document is customary and desired. In both cases it serves the same purpose: to bindingly document the consensus reached before resources are committed to fulfilment.
The order confirmation in the ERP system
In the ERP system, the order confirmation is not a separately recorded document but an output form of the customer order. As soon as an order is recorded – manually, by import or automatically from a shop, marketplace or via an API – the system can generate an order confirmation from it at the push of a button. The line items, prices and terms come from the order, the addresses from the customer master, the item data from the item master. This eliminates any double entry, and the OC is inevitably identical in content to the order.
The real benefit lies in the seamless document chain. The order confirmation is the first outgoing document; from the same order, the delivery note, shipping papers and invoice are subsequently created, all building on the same data. Changes to the order – such as an adjusted quantity – can be transferred into a corrected confirmation in a traceable way before dispatch. This keeps the entire process, from confirmation to invoicing, consistent and auditable.
Automatic dispatch and status tracking
Modern systems send the order confirmation to the customer automatically by email as soon as the order is released, and document the dispatch on the transaction. Combined with statuses such as “confirmed”, “in picking” or “shipped”, this creates seamless tracking of the order. For high order volumes from multiple channels, this means: every customer receives a correct confirmation without manual effort, and sales keeps an overview of the processing status at all times.
Distinction: order confirmation, quote, delivery note and invoice
Order confirmation, quote, delivery note and invoice mark different stations of the same deal and must not be confused. The quote is the seller’s unbinding invitation to conclude a deal and precedes the purchase order. The order confirmation follows the customer’s purchase order and makes the order binding – it is the commitment, not the fulfilment.
The delivery note later documents the goods actually delivered and accompanies the shipment; the invoice demands the agreed amount and is the only one of these documents with legally required mandatory details. Simplified, the sequence applies: quote (unbinding) → purchase order → order confirmation (binding commitment) → delivery note (fulfilment) → invoice (payment demand). The order confirmation thus sits exactly at the turning point between negotiation and execution.
DACH particularity: commercial letter of confirmation
In German-speaking commercial law there is the institution of the commercial letter of confirmation (kaufmännisches Bestätigungsschreiben): if a merchant confirms in writing a contract previously concluded verbally or by phone and the recipient does not object without delay, the content of the letter is deemed agreed – even if it deviates slightly from what was discussed. An order confirmation can produce this effect. For the documentation and retention obligation, the GoBD is also relevant as soon as the OC is part of a traceable document chain in the ERP.
Example
Example: a B2B wholesaler confirms a framework call-off
A wholesaler of electronic components receives an order from an industrial customer for 5,000 connectors at a graduated price stored in the framework agreement, with delivery in four weeks. Sales records the call-off in the ERP; customer, item and the agreed price are automatically taken over from the customer master and the framework agreement. After a brief availability check, the order is released.
From the order, the system generates the order confirmation at the push of a button – with document number, reference to the customer order, line item, quantity, graduated price, net total, tax breakdown and promised delivery date – and sends it automatically by email. The customer thus has binding proof of price and date. Four weeks later, a delivery note and invoice with identical line items are created from the same order – without a clerk having to enter data again. In the event of a later complaint, the OC serves as an agreed reference position.
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