Typically, there are some questions from customer where to look for localization information.
This blog post will guide you where to find this information.
In the following link you will find functions available that comprise a range of features to meet legal requirements and common business requirements in Mexico. These all support you in effectively carrying out your daily business and are explained in detail of the product assistance for Mexico.
Also, there is a note, This SAP Note aims to clarify questions about the eDocument Mexico ePayment and eInvoice functionalities. The intention is to maintain this documentation updated with the main SAP Notes, future changes, questions and issues regarding this solution. We also invite you to check out the SAP Note 2525257 (Localization Latin America), to keep yourself updated about the overall localization topics and solutions for Latin America, including localization for Mexico.
Last but not least you can get the roadmap planned innovations in the following link and search for the word Mexico