diff --git a/src/controller/sublevel.controller.js b/src/controller/sublevel.controller.js
index 2269441..0307022 100644
--- a/src/controller/sublevel.controller.js
+++ b/src/controller/sublevel.controller.js
@@ -1,6 +1,7 @@
 const Sublevel = require("../models/Sublevel");
 const mongoose = require("mongoose");
-const { addSublevelToParent, deleteSubLevelTreeFromRoot } = require("./utils/sublevel");
+const { addSublevelToParent, deleteSubLevelTreeFromRoot, validPositions } = require("./utils/sublevel");
+const { SubLevelTypes } = require("../config/constants");
 
 module.exports = {
   /**
@@ -32,11 +33,21 @@ module.exports = {
   createSubLevel: async (req, res, next) => {
     const { name, type, specs, parent_id, parentIsLevel, positions } = req.body;
 
-    if (!(name && type && parent_id)) {
+    if (!(name && type && parent_id && positions)) {
       res.status(400).send("Missing params param");
       return;
     }
 
+    if (!SubLevelTypes.includes(type)) {
+      res.status(400).send("Invalid type");
+      return;
+    }
+
+    if (!validPositions(positions)) {
+      res.status(400).send("Invalid positions");
+      return;
+    }
+
     try {
       const parentData = parentIsLevel ? { parent_current_depth: 0, parent_main_level_id: parent_id } : await Sublevel.findById(parent_id);
 
@@ -76,6 +87,11 @@ module.exports = {
       return;
     }
 
+    if (type && !SubLevelTypes.includes(type)) {
+      res.status(400).send("Invalid type");
+      return;
+    }
+
     try {
       const sublevelData = await Sublevel.findById(id);
       if (!sublevelData) {
diff --git a/src/controller/utils/sublevel.js b/src/controller/utils/sublevel.js
index 37e7ab6..3e63a93 100644
--- a/src/controller/utils/sublevel.js
+++ b/src/controller/utils/sublevel.js
@@ -95,10 +95,20 @@ const findAvailablePositions = (sublevelData) => {
   return LevelPositions.filter((pos) => !positionsOccupied.includes(pos));
 };
 
+/**
+ * Check if positions are valid positions
+ * @param {string[]} positions An array of positions
+ * @returns {boolean}
+ */
+const validPositions = (positions) => {
+  return positions.every((position) => LevelPositions.includes(position));
+};
+
 module.exports = {
   addSublevelToParent,
   removeSublevelFromParent,
   deleteSubLevelTreeFromRoot,
   moveSublevel,
   findAvailablePositions,
+  validPositions,
 };