Unset the password fields errors from MemberPress and auto-generate the user pass instead

memberpress-hide-password-fields.php

<?php
//This file only unsets the errors
//You'll still need to override the app/views/checkout/form.php file to remove the password fields HTML
//You can find instructions on overriding template files here: https://www.memberpress.com/1.1.7
function unset_password_validation_errors($errors) {
  if(empty($errors)) { return $errors; } //Should never happen if the password fields are hidden

  //Unset the password field errors
  // IF YOU'VE TRANSLATED THE PLUGIN - YOU MAY NEED TO CHANGE THESE ENGLISH TEXTS TO YOUR LANGUAGE
  foreach($errors as $i => $v) {
    if($v == 'You must enter a Password.') {
      unset($errors[$i]);
    }

    if($v == 'You must enter a Password Confirmation.') {
      unset($errors[$i]);
    }

    if(stripslashes($v) == "Your Password and Password Confirmation don't match.") {
      unset($errors[$i]);
    }
  }

  //Artificially set a password here
  $_POST['mepr_user_password'] = uniqid(); //Deprecated?
  $_REQUEST['mepr_user_password'] = uniqid();

  return $errors;
}
add_filter('mepr-validate-signup', 'unset_password_validation_errors');

functions.php should work fine. Also, a plugin like My Custom Functions could work well too.

How do you deliver the password to the user after they've successfully signed up? The code works for me otherwise but I'm not sure what the best flow would be for that.

Maybe this will help: https://gist.github.com/cartpauj/3fb64b7fa47ad88b62da

UPDATE: MP Has since created a setting to "Hide password fields" so this code is really no longer necessary.