Proper notice or notification of an assignment, or a payment instruction to the debtor, will be effective every time the debtor acknowledges such notice either by express or implied means, such as complying with the new terms of payment, such as paying the assignee. However, if the debtor does not acknowledge the notice, does not agree with new payment terms to the assignee, or just defaults payment with no cause, a formal notification will have to be done in accordance with Mexico’s commercial laws. Article 390 of Mexico’s Commercial Code provides that the assignment of receivables is to be done with proper notification of the debtor before two witnesses. However, it is a common practice in Mexico to give notice to a debtor with the help of a Notary Public instead of witnesses. The notice must be provided in Spanish, or in English with the Spanish translation. It is also highly recommended that a copy of all documents pertaining to the assignment are furnished to debtor, making sure he is well informed that the rights of the assignee have been conveyed and is now capable of pursuing enforcing such rights through the courts. This step should be taken to avoid future problems the assignee may encounter when trying to collect such receivables in court.