diff --git a/src/modules/project/repositories/project.repository.js b/src/modules/project/repositories/project.repository.js
index 94193cd..eb75e4b 100644
--- a/src/modules/project/repositories/project.repository.js
+++ b/src/modules/project/repositories/project.repository.js
@@ -194,6 +194,7 @@ class ProjectRepository {
       tasks: {
         select: {
           id: true,
+          slug: true,
           title: true,
           description: true,
           deadline_at: true,
@@ -268,6 +269,7 @@ class ProjectRepository {
         project: {
           select: {
             id: true,
+            slug: true,
             project_name: true,
             project_icon: true,
           },
diff --git a/src/modules/project/services/project.service.js b/src/modules/project/services/project.service.js
index c9b9512..e9e7a11 100644
--- a/src/modules/project/services/project.service.js
+++ b/src/modules/project/services/project.service.js
@@ -405,7 +405,9 @@ class ProjectService {
         const submission = task.submissions?.[0] || null;
         return {
           id: task.id,
+          slug: task.slug,
           id_project: task.id_project,
+          project_slug: task.project?.slug || null,
           project_name: task.project?.project_name || null,
           project_icon: task.project?.project_icon || null,
           title: task.title,
diff --git a/src/modules/task/services/task.service.js b/src/modules/task/services/task.service.js
index f650c95..1f897f3 100644
--- a/src/modules/task/services/task.service.js
+++ b/src/modules/task/services/task.service.js
@@ -16,8 +16,8 @@ const { slugify } = require('../../../helpers/utils/slug');
 class TaskService {
   async createTask(idProject, payload, actor = {}) {
     try {
-      if (!this.isPositiveInteger(idProject)) {
-        return error(new BadRequestError('Project ID must be a valid number'));
+      if (!idProject) {
+        return error(new BadRequestError('Project ID or slug is required'));
       }
 
       if (!actor?.id || !this.isMentorOrAdmin(actor)) {
@@ -30,18 +30,16 @@ class TaskService {
         return error(new NotFoundError('Project not found'));
       }
 
-      const taskSlug = await this.generateUniqueTaskSlug(project.id, payload.title);
-
-      const accessError = await this.validateProjectAccess(idProject, actor);
-
+      const accessError = await this.validateProjectAccess(project.id, actor);
       if (accessError) {
         return error(accessError);
       }
 
+      const taskSlug = await this.generateUniqueTaskSlug(project.id, payload.title);
       const deadlineAt = this.buildDeadlineAt(payload.deadline_date, payload.specific_time);
 
       const task = await taskRepository.createTask({
-        id_project: parseInt(idProject),
+        id_project: project.id,
         slug: taskSlug,
         title: payload.title,
         description: payload.description,
@@ -63,8 +61,8 @@ class TaskService {
 
   async getTasksByProject(idProject, actor = {}) {
     try {
-      if (!this.isPositiveInteger(idProject)) {
-        return error(new BadRequestError('Project ID must be a valid number'));
+      if (!idProject) {
+        return error(new BadRequestError('Project ID or slug is required'));
       }
 
       const project = await taskRepository.findProjectByIdOrSlug(idProject);
@@ -142,8 +140,8 @@ class TaskService {
 
   async updateTask(idTask, payload, actor = {}, projectIdentifier = null) {
     try {
-      if (!this.isPositiveInteger(idTask)) {
-        return error(new BadRequestError('Task ID must be a valid number'));
+      if (!idTask) {
+        return error(new BadRequestError('Task ID or slug is required'));
       }
 
       if (!actor?.id || !this.isMentorOrAdmin(actor)) {
@@ -212,8 +210,8 @@ class TaskService {
 
   async deleteTask(idTask, actor = {}, projectIdentifier = null) {
     try {
-      if (!this.isPositiveInteger(idTask)) {
-        return error(new BadRequestError('Task ID must be a valid number'));
+      if (!idTask) {
+        return error(new BadRequestError('Task ID or slug is required'));
       }
 
       if (!actor?.id || !this.isMentorOrAdmin(actor)) {
@@ -248,8 +246,8 @@ class TaskService {
 
   async submitTask(idTask, payload, file, actor = {}, projectIdentifier = null) {
     try {
-      if (!this.isPositiveInteger(idTask)) {
-        return error(new BadRequestError('Task ID must be a valid number'));
+      if (!idTask) {
+        return error(new BadRequestError('Task ID or slug is required'));
       }
 
       if (!actor?.id || actor.role !== 'intern') {