An ODR letter, also known as an Online Dispute Resolution letter, is a written communication sent electronically to resolve a dispute between two parties. This type of letter is typically used in situations where traditional methods of dispute resolution, such as face-to-face meetings or phone calls, are not feasible or preferred. ODR letters often outline the details of the dispute, propose potential solutions, and provide a platform for open communication and negotiation. They are commonly used in online transactions, such as e-commerce or virtual services, and can help facilitate a fair and efficient resolution process for all parties involved.