wpmem_email_shortcodes example

add_filter( 'wpmem_email_shortcodes', function ( $shortcodes, $tag, $user_id ) {
  
  // $tag is the email that is being handled.
  // possible tags are: newreg|newmod|appmod|repass|getuser
  
  // This will add a shortcode [my-custom-value] that would be replaced with "Here Is My Value".
  $shortcodes['my-custom-value'] = "Here Is My Value";
  
  // This is an example of a shortcode replaced with a user meta field (by user ID).
  $shortcodes['my-user-field-value'] = get_user_meta( $user_id, 'my_user_field', true );
  
  return $shortcodes;
  
}, 10, 3 );