Order Rejection Letter Mexico (Carta de Rechazo de Pedido)

An Order Rejection Letter Mexico (Carta de Rechazo de Pedido) is a formal written communication sent by a supplier (proveedor or vendedor) to a buyer (comprador or cliente) declining to accept or fulfil a purchase order (pedido or orden de compra) — whether in whole or in part — and notifying the buyer of the grounds for rejection, any conditions under which the order could be reconsidered, and the commercial consequences of the rejection under Mexican commercial law. Order rejection letters in Mexico are grounded in Código de Comercio (CCom) Article 75 (classifying the underlying commercial transaction as a mercantile act subject to commercial law) and Código Civil Federal (CCF) Article 1810 (establishing the rules governing offer and acceptance in commercial and civil contracts).

Under CCF Article 1810, a purchase order (pedido or orden de compra) sent by a buyer constitutes an offer (oferta) — a unilateral declaration by the buyer of its intention to purchase specified goods or services on specified terms. An offer in Mexico is binding on the offeror (the buyer) for the period during which the offeror has invited acceptance (período de vigencia de la oferta) or, if no period is specified, for a reasonable time based on the nature of the goods and commercial usage. The supplier's response to the purchase order — whether acceptance, counter-offer, or rejection — determines whether a binding contract (contrato perfeccionado) arises. Silence or failure to respond does not generally constitute acceptance under Mexican commercial law.

When a supplier receives a purchase order and declines to accept it — sending an Order Rejection Letter Mexico — no contract arises between the parties, and the supplier incurs no delivery obligation. The rejection terminates the buyer's offer, and the buyer is free to seek the goods or services from alternative suppliers. This is the fundamental legal effect of the rejection letter under CCom Article 75 and CCF Article 1810 — it prevents the formation of a binding commercial contract.

However, the legal analysis changes when a supplier has a prior framework agreement (contrato marco or acuerdo de suministro) or exclusive supply obligation (obligación de suministro exclusivo) with the buyer — under which the supplier is contractually obligated to accept purchase orders meeting agreed specifications and within agreed quantities. In such cases, wrongful rejection of a conforming purchase order constitutes breach of the supply agreement under CCF Article 1949, entitling the buyer to demand fulfilment or damages. An Order Rejection Letter in this context must carefully state the grounds for rejection — such as buyer's failure to meet credit terms, changes in the ordered product specifications, or force majeure events (caso fortuito or fuerza mayor under CCF Articles 2111–2115) — to avoid liability for wrongful rejection.

For regulated products — pharmaceuticals requiring COFEPRIS authorisation, food products governed by SENASICA, or chemicals subject to SEMARNAT permits — a supplier may be legally required to reject orders from buyers who lack the required regulatory authorisation to purchase or possess the regulated goods. The rejection letter in this context should reference the specific regulatory provision preventing the sale — protecting the supplier from administrative liability for knowingly supplying regulated goods to unauthorised buyers.

In the context of international commercial transactions (compraventas internacionales) where Mexican suppliers deal with foreign buyers, the Convention on Contracts for the International Sale of Goods (CISG — Convención de Viena sobre Compraventa Internacional de Mercaderías) may apply when both parties are from CISG member states and the parties have not excluded its application. Mexico ratified the CISG on 29 December 1987 — CISG Article 19 provides that a response to an offer that contains material modifications constitutes a counter-offer (contraoferta) rather than acceptance, and CISG Article 17 provides that an offer lapses when rejection reaches the offeror. The Order Rejection Letter Mexico must comply with both the CCom/CCF framework for domestic transactions and the CISG for international sales.

Strategically, a well-drafted Order Rejection Letter Mexico serves multiple commercial and legal functions: it preserves the supplier-buyer commercial relationship by offering alternative proposals or revised terms; it creates a documented record of the rejection and its grounds — protecting the supplier against claims that it accepted the order through conduct; it notifies the buyer promptly so the buyer can source goods elsewhere and mitigate any damages from the rejection; and it establishes the supplier's professional commercial communication standards.

An Order Rejection Letter Mexico is required whenever a supplier decides not to fulfil a purchase order received from a buyer — whether for commercial, operational, regulatory, or credit-related reasons — and the supplier needs to formally notify the buyer of the rejection under Código de Comercio Article 75 and Código Civil Federal Article 1810.

The letter is needed when a supplier lacks the inventory or production capacity to fulfil the ordered quantities — particularly when the order is for an amount exceeding the supplier's current stock or production schedule. Prompt written rejection allows the buyer to source the goods from alternative suppliers without delay, minimising the buyer's procurement disruption and demonstrating the supplier's good faith (buena fe comercial) under CCF Article 1796.

An Order Rejection Letter is required when the buyer's credit standing (solvencia crediticia) is insufficient — the buyer has outstanding overdue invoices, an adverse Buró de Crédito record, or has recently entered concurso mercantil proceedings under the Ley de Concursos Mercantiles — and the supplier declines the order on credit grounds. The rejection letter should state the credit-based grounds clearly to give the buyer the opportunity to provide credit security (garantía) or prepay to revive the order.

The letter is needed when the purchase order contains non-conforming specifications — the buyer has ordered a product model, specification, or configuration that the supplier does not produce or supply. The rejection letter should offer alternative products or specifications that the supplier can provide, turning a rejection into a potential counter-offer under CCF Article 1810.

A formal rejection letter is also required when a supplier under a framework supply agreement declines a specific purchase order on permitted grounds — such as force majeure events under CCF Articles 2111–2115, regulatory changes imposed by the Secretaría de Economía (SE) or COFEPRIS, or the buyer's failure to comply with ordering procedures specified in the framework agreement. The documented rejection protects the supplier against breach-of-contract claims from the buyer before the Juzgados de Distrito en Materia Mercantil or in arbitration before the Centro de Arbitraje de México (CAM).

Under CCom art. 75 and CCF art. 1810, any supplier receiving a purchase order that it cannot or will not fulfil should send a prompt written Order Rejection Letter Mexico — preventing the inadvertent formation of a binding contract through conduct or silence, and preserving the commercial relationship through transparent communication. The letter is equally relevant for domestic Mexican suppliers and for maquiladoras (IMMEX participants) dealing with international purchase orders that cannot be accepted due to production constraints or regulatory export restrictions.

A legally effective Order Rejection Letter Mexico under Código de Comercio Article 75 and Código Civil Federal Article 1810 must include these essential elements to prevent contract formation, clearly communicate the grounds for rejection, and preserve the supplier-buyer commercial relationship:

Party Identification: Full legal name, RFC (Registro Federal de Contribuyentes assigned by the SAT), domicilio fiscal, and contact information of the supplier (proveedor) sending the rejection and the buyer (comprador or cliente) whose order is being rejected. The letter must be signed by an authorised representative of the supplier with authority to accept or reject commercial orders, supported by a power of attorney (poder notarial) granted before a Notario Público under the Código Civil Federal.

Purchase Order Reference: Precise identification of the purchase order being rejected — order number (número de pedido or número de orden de compra), order date, and a brief description of the goods or services ordered (quantity, product description, and specification). Attaching the original purchase order as an exhibit ensures no ambiguity about which order is being rejected and creates a clear evidentiary record.

Rejection Decision Statement: A clear, unambiguous statement that the supplier declines (rechaza) the specified purchase order — in whole or in part. For partial rejections, specify which line items, quantities, or specifications are rejected and which (if any) are accepted. Avoid ambiguous language that could be construed as a counter-offer or conditional acceptance under CCF Article 1810.

Grounds for Rejection: The specific commercial, operational, regulatory, or credit-based reason for the rejection — one or more of: (a) insufficient stock or production capacity (falta de stock o capacidad productiva) to fulfil the order; (b) buyer's overdue invoices or credit limit exceeded (facturas vencidas or límite de crédito excedido); (c) non-conforming order specifications (especificaciones no conformes) — the product ordered is not available in the specified configuration; (d) regulatory restriction (restricción regulatoria) — the buyer lacks required COFEPRIS, SE, or SEMARNAT authorisation; (e) force majeure event (caso fortuito or fuerza mayor under CCF Articles 2111–2115); or (f) the order was received outside the supplier's ordering window or minimum order quantity requirements under the framework agreement.

Alternative Proposals: Where applicable, an offer of alternatives — substitute products (productos sustitutos) meeting the buyer's functional needs; available quantities less than ordered (cantidad disponible); alternative delivery dates; or revised commercial terms (condiciones comerciales revisadas) that would allow the supplier to accept the order. Offering alternatives transforms a rejection into a collaborative commercial communication and reduces the likelihood of the buyer seeking a new supplier permanently.

Timeline and Response Request: If the rejection is conditional or based on factors the buyer can address — such as providing credit security, updating product specifications, or clearing overdue invoices — specify a deadline for the buyer to respond with the required information or documentation for the supplier to reconsider the order.

Status of Prior Contract or Framework Agreement: When the buyer and supplier have a framework supply agreement (contrato marco de suministro), acknowledgment of the agreement's status and clarification of whether the rejected order falls within or outside the supplier's obligations under the framework. If the rejection is based on permitted grounds under the framework agreement, cite the applicable clause to support the rejection.

Contact Information for Queries: Supplier's designated contact (nombre del contacto, teléfono, and correo electrónico) for the buyer to discuss the rejection, submit revised orders, or explore alternative solutions — maintaining the commercial relationship despite the rejection.

SAT and CFDI Notes: Confirmation that no CFDI will be issued for the rejected order, and that any CFDI previously issued in anticipation of the order — if any — will be cancelled through the SAT portal within the applicable cancellation period under Código Fiscal de la Federación (CFF) Article 29-A. This prevents accounting discrepancies and SAT compliance issues arising from a cancelled transaction.

Governing Law: Reference to Código de Comercio Article 75 and CCF Article 1810 as the applicable legal framework for the transaction and this rejection. Forms-legal.com provides this Order Rejection Letter Mexico template as a practical tool for commercial suppliers — suppliers under framework supply agreements or exclusive supply obligations should seek advice from a Licenciado en Derecho specialised in derecho mercantil before rejecting conforming orders, to avoid breach-of-contract claims and pena convencional under CCF Article 2117.