ERPNext Mexico Compliance

ERPNext app to comply with Mexican Rules and Regulations

Introduction

ERPNext Mexico Compliance has been designed to adapt ERPNext business logic to comply with the Rules and Regulations of Mexican authorities.

It is built on top of ERPNext and Frappe Framework

Installation

The installation steps assumes you have Frappe Framework and ERPNext already installed.

Frappe Cloud

Signup with Frappe Cloud and refer to the Installing an app documentation

Self Hosting

# Download app
bench get-app https://github.com/TI-Sin-Problemas/erpnext_mexico_compliance.git --branch version-15

# Install app
bench --site site_name install-app erpnext_mexico_compliance

CFDI Stamping setup

To enable the CFDI Stamping feature, you will need:

• A package of stamps. To buy a package of stamps please contact us by sending an email to info@tisinproblemas.com
• An API Key. You will get an API Key whith your package of stamps.
• A valid Digital Signing Certificate (CSD) issued by the Mexican Tax Administration Service (SAT)

Once you have all the requirements, on your ERPNext instance follow the steps below:

1. Go to Desktop -> Mexico Compliance -> Digital Signing Certificate

2. Add a Digital Signing Certificate:

   1. Click on Add Digital Signing Certificate
   2. Select your Company
   3. Attach your certificate file (.cer)
   4. Attach your certificate key file (.key)
   5. Enter the Certificate key password
   6. Click on Save

3. Go to Desktop -> Mexico Compliance -> CFDI Stamping Settings:

   1. Enter your API Key
   2. Uncheck the Test mode checkbox in your production environment
   3. Click on Save

You will see the total amount of available credits/stamps in the CFDI Stamping Settings if the API Key and environment is correct

Features

CFDI Stamping

The CFDI Stamping feature allows you to create and stamp CFDI documents for Sales Invoices and Payment Entries as required by Mexican authorities.

Sales invoice stamping

Please be aware that in order to successfully stamp a Sales Invoices, some requirements must be met.

• There must be at least 1 Digital Signing Certificate for the Company issuing the Sales Invoice
• You must have available credits/stamps
• The Address of the Company must have a Zip Code
• The Customer must have a valid CFDI Tax Id (RFC)
• The Customer must have a Tax Regime
• The Customer's address must have a Zip Code
• The Invoice Items must have a SAT Product or Service Key
• The UOM of the Invoice Items must have a SAT UOM Key
• The Mode of Payment of the invoice must have a SAT Payment Method
• The invoice must have a SAT Payment Option

To stamp a Sales Invoice, a Stamp CFDI button will be available on the Sales Invoice form once it has being submitted.

Payment Entry stamping

Please be aware that in order to successfully stamp a Payment Entry, some requirements must be met.

• There must be at least 1 Digital Signing Certificate for the Company issuing the Payment Entry
• You must have available credits/stamps
• The Address of the Company must have a Zip Code
• All the Reference Items must have being stamped

Mexican authorities catalogs

Some of the Mexican authorities catalogs are added as Doctypes

Doctype	Catalog (in spanish)
Cancellation reason	Motivo de cancelación SAT
SAT CFDI Use	Uso de CFDI SAT
SAT Payment Method	Forma de pago SAT
SAT Payment Option	Método de pago SAT
SAT Product Or Service Key	Clave de producto/servicio SAT
SAT Tax Regime	Régimen fiscal SAT
SAT UOM Key	Clave de unidad de medida SAT

Compliance fields

New fields are created for the following Doctypes

Account Doctype

Field	Description
Tax Type	Type of Tax for Tax Accounts (IVA, ISR, IEPS)

Bank Account

Field	Description
CLABE	CLABE (Clave Bancaria Estandarizada) for Bank Accounts

Company

Field	Description
SAT Tax Regime	SAT Tax Regime for Companies

Customer

Field	Description
SAT Tax Regime	SAT Tax Regime for Customers

Item

Field	Description
SAT Product or Service Key	SAT Product or Service Key for Items

Mode of Payment

Field	Description
SAT Payment Method	Used to Link Invoices & Payment Entries with SAT Payment Method

Payment Entry

Field	Description
Cancellation reason	If a stamped Payment Entry needs to be cancelled, a Cancellation Reason must be provided
Substitute payment entry	If the Cancellation Reason requires it, this field allows to specify a Substitute payment entry
Stamped XML	Holds the XML data generated by the CFDI Stamping process.
Cancellation acknowledgement	Cancellation Acknowledgement XML data generated by the CFDI Cancellation Stamping process.

Sales Invoice

Field	Description
Mode of Payment	Mode of Payment for Sales Invoices
SAT Payment Option	SAT Payment Option for Sales Invoices
SAT CFDI Use	SAT CFDI Use for Sales Invoices
SAT Payment Method	SAT Payment Method for Sales Invoices
Stamped XML	Holds the XML data generated by the CFDI Stamping process.
Cancellation reason	If a stamped Sales Invoice needs to be cancelled, a Cancellation Reason must be provided
Substitute invoice	If the Cancellation Reason requires it, this field allows to specify a Substitute invoice
Cancellation acknowledgement	Cancellation Acknowledgement XML data generated by the CFDI Cancellation Stamping process.

Sales Invoice Item

Field	Description
SAT Product or Service Key	SAT Product or Service Key for Sales Invoice Items

UOM

Field	Description
SAT UOM Key	Used to link Sales Invoice Items with a SAT UOM Key

License

MIT