diff --git a/includes/post-type-analyses-etudes.php b/includes/post-type-analyses-etudes.php
new file mode 100644
index 0000000..ff11277
--- /dev/null
+++ b/includes/post-type-analyses-etudes.php
@@ -0,0 +1,33 @@
+<?php
+
+// THE POST TYPE IS DECLARED IN THE MU-PLUGINS/CARHOP-POST-TYPES.PHP FILE
+
+
+function handle_posts_analyses_etudes_numerotation_remapping()
+{
+	// Ne s'exécuter que dans l'admin pour éviter de surcharger le frontend
+	if (!is_admin()) {
+		return;
+	}
+
+	$args = array(
+		'post_type' => 'analyses-etudes',
+		'posts_per_page' => -1,
+		'orderby' => 'date',
+		'order' => 'ASC',
+	);
+
+	$query = new WP_Query($args);
+
+	if ($query->have_posts()) {
+		while ($query->have_posts()) {
+			$query->the_post();
+			$current_numerotation = $query->current_post + 1;
+			update_post_meta(get_the_ID(), 'post_numerotation', $current_numerotation);
+		}
+		wp_reset_postdata();
+	}
+}
+
+add_action('save_post', 'handle_posts_analyses_etudes_numerotation_remapping');
+add_action('delete_post', 'handle_posts_analyses_etudes_numerotation_remapping');