Arrby Mercado Pago Enrollment is a enrolment plugin that allow mercadopago payment.
For sandbox testing use the following variables
This plugins use MercadoPago SDK PHP https://www.mercadopago.com.co/developers/en/guides/sdks/official/php/
Generate users tests https://www.mercadopago.com.co/developers/en/guides/qr-code/final-steps/integration-test/
Hernan Arregoces
Moodle profile: https://moodle.org/user/profile.php?id=1931915
Linkedin: https://www.linkedin.com/in/hernanarregoces/
First way
Second way