diff --git a/backend/web/server/plugins/aftral-lms/functions.js b/backend/web/server/plugins/aftral-lms/functions.js
index ce9b70c6e2..08e1d94df0 100644
--- a/backend/web/server/plugins/aftral-lms/functions.js
+++ b/backend/web/server/plugins/aftral-lms/functions.js
@@ -183,6 +183,12 @@ declareComputedField({model: 'post', field: 'liked', getterFn: isLiked, requires
  // Ticket start
 declareEnumField({model:'ticket', field: 'status', instance: 'String', enumValues: TICKET_STATUS})
 declareEnumField({model:'ticket', field: 'tag', instance: 'String', enumValues: TICKET_TAG})
+// declareVirtualField({model:`ticket`, field: `conversation`, instance: `Array`, multiple: false,
+//   caster: {
+//     instance: `ObjectID`,
+//     options: {ref: `ticket`}
+//   }
+// })
 // Ticket End
 
  // Permission start
@@ -201,6 +207,17 @@ declareVirtualField({model: `group`, field: `available_trainees_count`, instance
 declareVirtualField({model: `group`, field: `excluded_trainees_count`, instance: `Number`, requires: `trainees,available_trainees`})
 // Group end
 
+// HelpDeskConversation start
+const CONVERSATION_MODELS = [`helpDeskConversation`, `sessionConversation`, `conversation`]
+CONVERSATION_MODELS.forEach(model => {
+  declareVirtualField({model, field: 'messages', instance: 'Array', multiple: true,
+    caster: {
+      instance: 'ObjectID',
+      options: {ref: 'message'}},
+  })
+})
+// HelpDeskConversation end
+
 const preCreate = async ({model, params, user}) => {
   params.creator=params.creator || user._id
   params.last_updater=user._id
diff --git a/backend/web/server/plugins/aftral-lms/schemas/ConversationSchema.js b/backend/web/server/plugins/aftral-lms/schemas/ConversationSchema.js
index 95ac38183c..6ddda48e19 100644
--- a/backend/web/server/plugins/aftral-lms/schemas/ConversationSchema.js
+++ b/backend/web/server/plugins/aftral-lms/schemas/ConversationSchema.js
@@ -7,15 +7,16 @@ const ConversationSchema = new Schema({
     type: mongoose.Schema.Types.ObjectId,
     ref: 'user',
   },
-  messages: [{
-    type: mongoose.Schema.Types.ObjectId,
-    ref: 'message',
-  }],
   newest_message: {
     type: mongoose.Schema.Types.ObjectId,
     ref: 'message',
   },
-},
-schemaOptions)
+},schemaOptions)
+
+ConversationSchema.virtual('messages', {
+  ref: 'message',
+  localField: '_id',
+  foreignField: 'conversation',
+})
 
 module.exports=ConversationSchema
diff --git a/backend/web/server/plugins/aftral-lms/schemas/HelpDeskConversationSchema.js b/backend/web/server/plugins/aftral-lms/schemas/HelpDeskConversationSchema.js
index dd4daf91b9..f5e0f701b1 100644
--- a/backend/web/server/plugins/aftral-lms/schemas/HelpDeskConversationSchema.js
+++ b/backend/web/server/plugins/aftral-lms/schemas/HelpDeskConversationSchema.js
@@ -6,10 +6,12 @@ const HelpDeskConversationSchema = new Schema({
   user: { //trainee, trainer, conceptor
     type: Schema.Types.ObjectId,
     ref: `user`,
+    required: [true, `L'utilisateur est obligatoire`]
   },
   ticket: {
     type: Schema.Types.ObjectId,
     ref: `ticket`,
+    required: [true, `Le ticket est obligatoire`]
   },
   block: {
     type: Schema.Types.ObjectId,
diff --git a/backend/web/server/plugins/aftral-lms/schemas/SessionConversationSchema.js b/backend/web/server/plugins/aftral-lms/schemas/SessionConversationSchema.js
index 3d83c840e9..95449033de 100644
--- a/backend/web/server/plugins/aftral-lms/schemas/SessionConversationSchema.js
+++ b/backend/web/server/plugins/aftral-lms/schemas/SessionConversationSchema.js
@@ -7,10 +7,10 @@ const SessionConversationSchema = new Schema({
     type: Schema.Types.ObjectId,
     ref: `user`,
   },
-  session: {
+  group: {
     type: Schema.Types.ObjectId,
-    ref: `ticket`,
-  }
+    ref: `group`,
+  },
 },
 schemaOptions)
 
diff --git a/backend/web/tests/aftral-lms/block.test.js b/backend/web/tests/aftral-lms/block.test.js
index 5aaf4147e1..b506ebd222 100644
--- a/backend/web/tests/aftral-lms/block.test.js
+++ b/backend/web/tests/aftral-lms/block.test.js
@@ -138,7 +138,6 @@ describe('User', () => {
   })
 
   it('must return homeworks submitted count', async() => {
-    
     const [data] = await loadFromDb({model:`block`, user:conceptor, id, fields:[`session`,`homeworks_missing_count`,`homeworks`,`homeworks_submitted_count`,`trainees_count`]})
     expect(data.homeworks_missing_count).toEqual(0)
     expect(data.homeworks_submitted_count).toEqual(2)
diff --git a/backend/web/tests/aftral-lms/ticket.test.js b/backend/web/tests/aftral-lms/ticket.test.js
new file mode 100644
index 0000000000..f264f8516f
--- /dev/null
+++ b/backend/web/tests/aftral-lms/ticket.test.js
@@ -0,0 +1,79 @@
+const mongoose = require('mongoose')
+const { MONGOOSE_OPTIONS, loadFromDb, idEqual } = require('../../server/utils/database')
+require('../../server/plugins/aftral-lms/functions')
+const User = require('../../server/models/User')
+const Resource = require('../../server/models/Resource')
+const Sequence = require('../../server/models/Sequence')
+const Module = require('../../server/models/Module')
+const Program = require('../../server/models/Program')
+const Session = require('../../server/models/Session')
+require('../../server/models/Certification')
+require('../../server/models/Permission')
+require('../../server/models/PermissionGroup')
+const { ROLE_APPRENANT, ROLE_FORMATEUR, RESOURCE_TYPE_PDF, ACHIEVEMENT_RULE_CHECK, ACHIEVEMENT_RULE_SUCCESS, ACHIEVEMENT_RULE_CONSULT, RESOURCE_TYPE_VIDEO, ACHIEVEMENT_RULE_DOWNLOAD, ROLE_CONCEPTEUR, BLOCK_STATUS_CURRENT, BLOCK_STATUS_FINISHED, BLOCK_STATUS_UNAVAILABLE, ACHIEVEMENT_RULE, ROLE_HELPDESK } = require('../../server/plugins/aftral-lms/consts')
+const Block = require('../../server/models/Block')
+const Homework = require('../../server/models/Homework')
+const Progress = require('../../server/models/Progress')
+const ProductCode = require('../../server/models/ProductCode')
+const { addChildAction } = require('../../server/plugins/aftral-lms/actions')
+const HelpDeskConversation = require('../../server/models/HelpDeskConversation')
+const Ticket = require('../../server/models/Ticket')
+const Message = require('../../server/models/Message')
+require('../../server/models/Feed')
+require('../../server/models/Certification')
+
+describe(`Ticket`, () => {
+  let user, ticket, conversation, message, helpDesk
+  beforeAll(async() => {
+    await mongoose.connect(`mongodb://localhost/aftral-test`, MONGOOSE_OPTIONS)
+
+    user = await User.create({
+      firstname: `John`,
+      lastname: `Doe`,
+      role: ROLE_CONCEPTEUR,
+      password: `Test`,
+      email: `t@t.com`,
+    })
+
+    helpDesk = await User.create({
+      firstname: `Jeanette`,
+      lastname: `Doe`,
+      role: ROLE_HELPDESK,
+      password: `Test`,
+      email: `t@t.com`,
+    })
+
+    ticket = await Ticket.create({
+      user: user._id,
+      content: `content`,
+      title: `Test ticket`
+    })
+
+    conversation = await HelpDeskConversation.create({
+      user: user._id,
+      ticket: ticket._id
+    })
+
+    ticket.conversation = conversation._id
+    await ticket.save()
+
+    message = await Message.create({
+      conversation: conversation._id,
+      sender: user._id,
+      content: `Test message`
+    })
+  })
+
+  afterAll(async() => {
+    await mongoose.connection.dropDatabase()
+    await mongoose.connection.close()
+  })
+
+  it(`must return ticket conversation messages`, async() => {
+    const [data] = await loadFromDb({
+      model: `ticket`,
+      fields: [`conversation.messages`]
+    })
+    expect(data.conversation.messages[0].content).toEqual(`Test message`)
+  })
+})
\ No newline at end of file