I’m new in strapi and i need to change admin registration form.I found information how to chage the front part of registration,but i need change input data validation in back-end.How i can do it?Also where i can find back-end part of admin registartion?
All the core front/backend parts of the Admin panel are located in this package: strapi/packages/strapi-admin at master · strapi/strapi · GitHub
While we do support extending the frontend part, currently there is no extensions system for the backend and the only choice is to fork the package (meaning you will need to maintain it and keep it up to date through every version major or minor).
We have an open GitHub issue to move the
strapi-admin package into a plugin to allow for modification of the backend part here: