Override Admin Customer View not working

[grabelle]

Hello I'm following the tutorial https://devdocs.prestashop-project.org/1.7/modules/concepts/templating/admin-views/ to override the Customer Admin view. It is not working, my file is ignored. It is in modules/mymodule/views/Prestashop/Admin/Sell/Customer/view.html.twig and the content is

` {% extends 'PrestaShopBundle:Admin/Sell/Customer:view.html.twig' %} {% block content %} Hi there ! {% endblock %}

`

The module is of course activated/enabled (and it is working) My version is 1.7.8.2 Can you help ?

Thanks a lot

[grabelle]

Sorry I forget so uppercase 'S' in Prestashop