diff --git a/Dfe.PrepareConversions/Dfe.PrepareConversions.CypressTests/cypress/e2e/Core-journeys/decisions_tests.cy.js b/Dfe.PrepareConversions/Dfe.PrepareConversions.CypressTests/cypress/e2e/Core-journeys/decisions_tests.cy.js
index 34f2feed0..0ae1194ab 100644
--- a/Dfe.PrepareConversions/Dfe.PrepareConversions.CypressTests/cypress/e2e/Core-journeys/decisions_tests.cy.js
+++ b/Dfe.PrepareConversions/Dfe.PrepareConversions.CypressTests/cypress/e2e/Core-journeys/decisions_tests.cy.js
@@ -42,29 +42,44 @@ describe('Decisions Tests', () => {
 
     Logger.log("Capture the projectId dynamically from the URL");
     cy.url().then((url) => {
-      projectId = url.match(/task-list\/(\d+)/)[1]; 
+      projectId = url.match(/task-list\/(\d+)/)[1];
       Logger.log(`Project ID: ${projectId}`);
     }).then(() => {
       Logger.log("Click on record a decision menubar button");
       decisionPage.clickRecordDecisionMenu();
-  
+
       Logger.log("Click on record a decision button");
       decisionPage.clickRecordDecision();
-  
+
+      Logger.log("Check error and add necessary details to record the decision");
+      decisionPage.checkErrorAndAddDetails('15', '10', '2024', 'Paul Lockwood');
+
+      Logger.log("Click on record a decision menubar button");
+      decisionPage.clickRecordDecisionMenu();
+
+      Logger.log("Click on record a decision button");
+      decisionPage.clickRecordDecisionWithoutError();
+
       Logger.log("Record the decision with the necessary details");
-      decisionPage.makeDecision("approved")
+      decisionPage.makeDecision("deferred")
         .decsionMaker("grade6")
-        .selectNoConditions()
+        .selectReasonWhyDeferred()
         .enterDecisionMakerName('Fahad Darwish')
         .enterDecisionDate('12', '12', '2023')
-        .verifyDecisionDetails('Approved', 'Grade 6', 'Fahad Darwish', 'No', '12 December 2023');
-  
+        .verifyDecisionDetails('Deferred', 'Grade 6', 'Fahad Darwish', '12 December 2023');
+
       Logger.log("Verify that decision was recorded successfully then change the decision details, verify the changes");
       decisionPage.changeDecisionDetails();
-  
+
       Logger.log("Change the current decision to DAO (Directive Academy Order) revoked and verify the changes");
       decisionPage.changeDecisionDAODetails();
-  
+
+      Logger.log("Change the current decision to Approved, verify the changes then check if the project is readonly");
+      decisionPage.changeDecisionApproved();
+
+      Logger.log("Check if this project is readonly after adding a decision");
+      decisionPage.clickToGoBackandCheckReadOnly();
+
       Logger.log("Delete the project and verify that it was deleted successfully - Project ID: " + projectId);
       decisionPage.deleteProject(projectId);
     });
diff --git a/Dfe.PrepareConversions/Dfe.PrepareConversions.CypressTests/cypress/e2e/Core-journeys/sponsored-conversion.cy.js b/Dfe.PrepareConversions/Dfe.PrepareConversions.CypressTests/cypress/e2e/Core-journeys/sponsored-conversion.cy.js
index c8443ab53..d3015d339 100644
--- a/Dfe.PrepareConversions/Dfe.PrepareConversions.CypressTests/cypress/e2e/Core-journeys/sponsored-conversion.cy.js
+++ b/Dfe.PrepareConversions/Dfe.PrepareConversions.CypressTests/cypress/e2e/Core-journeys/sponsored-conversion.cy.js
@@ -173,6 +173,7 @@ describe('Sponsored conversion journey', { tags: ['@dev', '@stage'] }, () => {
       // Complete
       ConversionDetails.markComplete();
       cy.confirmContinueBtn().click();
+      
       projectTaskList.getConversionDetailsStatus().should('contain.text', testData.completedText);
    });
 
diff --git a/Dfe.PrepareConversions/Dfe.PrepareConversions.CypressTests/cypress/pages/decisionPage.js b/Dfe.PrepareConversions/Dfe.PrepareConversions.CypressTests/cypress/pages/decisionPage.js
index ca4cfeaa2..646248993 100644
--- a/Dfe.PrepareConversions/Dfe.PrepareConversions.CypressTests/cypress/pages/decisionPage.js
+++ b/Dfe.PrepareConversions/Dfe.PrepareConversions.CypressTests/cypress/pages/decisionPage.js
@@ -1,3 +1,5 @@
+import { Logger } from "../support/logger";
+
 export class DecisionPage {
 
 
@@ -39,10 +41,54 @@ export class DecisionPage {
     }
 
     clickRecordDecision() {
+        cy.get('[data-test="record_decision_error_btn"]').click();
+        return this;
+    }
+
+    clickRecordDecisionWithoutError() {
         cy.get('[data-cy="record_decision_btn"]').click();
         return this;
     }
 
+
+    checkErrorAndAddDetails(day, month, year, userName) {
+
+        cy.get('#errorSummary').should('be.visible');
+        cy.get('#error-summary-title').should('contain', 'There is a problem');
+        cy.get('[data-cy="error-summary"]')
+            .find('a')
+            .should('have.length', 2)
+            .eq(0)
+            .should('contain', 'You must enter an advisory board date before you can record a decision.')
+            .and('be.visible');
+        cy.get('[data-cy="error-summary"]')
+            .find('a')
+            .eq(1)
+            .should('contain', 'You must enter the name of the person who worked on this project before you can record a decision.')
+            .and('be.visible');
+        cy.contains('a', 'You must enter an advisory board date before you can record a decision').click();
+        cy.get('#head-teacher-board-date-day').type(day);
+        cy.get('#head-teacher-board-date-month').type(month);
+        cy.get('#head-teacher-board-date-year').type(year);
+        cy.get('[data-cy="select-common-submitbutton"]').click();
+
+        cy.get('[data-cy="record_decision_menu"] > .moj-sub-navigation__link').click();
+
+
+        cy.get('[data-test="record_decision_error_btn"]').click();
+        cy.contains('a', 'You must enter the name of the person who worked on this project before you can record a decision.').click();
+        cy.get('#delivery-officer').type(userName);
+        cy.get('.autocomplete__option').first().click();
+        cy.get('[data-cy="continue-Btn"]').click();
+
+
+        cy.get('#notification-message').should('include.text', 'Project is assigned');
+        cy.get('#main-content > :nth-child(2) > :nth-child(2)').should('include.text', userName);
+
+        return this;
+    }
+
+
     makeDecision(decision) {
         cy.get(`#${decision}-radio`).click();
         cy.get('#submit-btn').click();
@@ -67,6 +113,13 @@ export class DecisionPage {
         return this;
     }
 
+    selectReasonWhyDeferred() {
+        cy.get('#additionalinformationneeded-checkbox').click();
+        cy.get('#additionalinformationneeded-txtarea').type('Fahads Cypress Reason is Additional Information Needed');
+        cy.get('#submit-btn').click();
+        return this;
+    }
+
     enterDecisionDate(day, month, year) {
         cy.get('#decision-date-day').type(day);
         cy.get('#decision-date-month').type(month);
@@ -83,26 +136,40 @@ export class DecisionPage {
         return this;
     }
 
-    verifyDecisionDetails(decision, grade, name, conditions, date) {
-        cy.get('#decision').should('contain', decision);
+    verifyDecisionDetails(decision, grade, name, date) {
+        Logger.log(`Decision: ${decision}, Name: ${name}, Date: ${date}`);
+        cy.log(`Decision: ${decision}, Name: ${name}, Date: ${date}`);
+        cy.get('#decision')
+            .invoke('text')
+            .then((text) => {
+                expect(text.trim()).to.contain(decision);
+            });
         cy.get('#decision-made-by').eq(0).should('contain', grade);
         cy.get('#decision-maker-name').should('contain', name);
-        cy.get('#condition-set').should('contain', conditions);
         cy.get('#decision-date').should('contain', date);
         cy.get('#submit-btn').click();
         return this;
     }
 
-    verifyDecisionDetailsBeforeChanging(decision, name, conditions, date) {
-        cy.get('#decision').should('contain', decision);
+    verifyDecisionDetailsBeforeChanging(decision, name, date) {
+        Logger.log(`Decision: ${decision}, Name: ${name}, Date: ${date}`);
+        cy.log(`Decision: ${decision}, Name: ${name}, Date: ${date}`);
+        cy.get('#decision')
+            .invoke('text')
+            .then((text) => {
+                expect(text.trim().toLowerCase()).to.contain(decision.toLowerCase().trim());
+            });
         cy.get('#decision-maker-name').should('contain', name);
-        cy.get('#condition-set').should('contain', conditions);
         cy.get('#decision-date').should('contain', date);
         return this;
     }
 
     verifyDecisionDetailsAfterChanging(decision, name, date) {
-        cy.get('#decision').should('contain', decision);
+        cy.get('#decision')
+            .invoke('text')
+            .then((text) => {
+                expect(text.trim().toLowerCase()).to.contain(decision.toLowerCase().trim());
+            });
         cy.get('#decision-made-by').should('contain', name);
         console.log('Date:', date);
         cy.get('#decision-date').should('contain', date);
@@ -111,7 +178,7 @@ export class DecisionPage {
 
     changeDecisionDetails() {
         cy.get('[data-cy="record_decision_menu"]').click();
-        this.verifyDecisionDetailsBeforeChanging('Approved', 'Fahad Darwish', 'No', '12 December 2023');
+        this.verifyDecisionDetailsBeforeChanging('DEFERRED', 'Fahad Darwish', '12 December 2023');
         cy.get('#record-decision-link').click();
         cy.get('#declined-radio').click();
         cy.get('#submit-btn').click();
@@ -121,7 +188,6 @@ export class DecisionPage {
         cy.get('#declined-reasons-finance').click();
         cy.get('#reason-finance').type('Fahads Cypress Reason is Finance');
         cy.get('#submit-btn').click();
-        //decision maker name will stay as name Fahad Darwish then click continue
         cy.get('#submit-btn').click();
 
         //change the date to 12th November 2023
@@ -155,6 +221,39 @@ export class DecisionPage {
         cy.get('#submit-btn').click();
         cy.get('#submit-btn').click();
         this.verifyDecisionDetailsAfterChanging('DAO', 'Minister', '12 November 2023');
+        cy.get('#submit-btn').click();
+        return this;
+    }
+
+
+    changeDecisionApproved() {
+        cy.get('[data-cy="record_decision_menu"]').click();
+        cy.get('#record-decision-link').click();
+        cy.get('#approved-radio').click();
+        cy.get('#submit-btn').click();
+        cy.get('#minister-radio').click();
+        cy.get('#submit-btn').click();
+        cy.get('#no-radio').click();
+        cy.get('#submit-btn').click();
+        cy.get('#decision-maker-name').clear().type('Fahad Darwish');
+        cy.get('#submit-btn').click();
+        cy.get('#decision-date-day').clear();
+        cy.get('#decision-date-day').type('12');
+        cy.get('#decision-date-month').clear();
+        cy.get('#decision-date-month').type('11');
+        cy.get('#decision-date-year').clear();
+        cy.get('#decision-date-year').type('2023');
+        cy.get('#submit-btn').click();
+        this.verifyDecisionDetailsAfterChanging('Approved', 'Minister', '12 November 2023');
+        cy.get('#submit-btn').click();
+        cy.get('[data-cy="decision-recorded-confirmation"]')
+            .should('be.visible');
+        cy.get('[data-cy="decision-recorded-confirmation"]').should('contain', 'Decision recorded');
+        cy.get('[data-cy="approved-body"]').should('contain', 'Manchester Academy')
+            .and('contain', 'Approved');
+
+        cy.get('[data-cy="open-in-compelete-btn"]')
+            .should('be.visible');
         return this;
     }
     deleteProject(projectId) {
@@ -162,6 +261,25 @@ export class DecisionPage {
             expect(response.status).to.eq(200);
         });
     }
+
+    clickToGoBackandCheckReadOnly() {
+        cy.get('[data-cy="select-backlink"]').click();
+        cy.get('[data-cy="record_decision_menu"]').click();
+        cy.get('[data-cy="approved-message_banner"]')
+            .should('be.visible')
+            .and('contain', 'This project was approved');
+
+        return this;
+    }
+
+
+
+    goBackToTaskList() {
+        cy.get('[data-cy="back-link"]').click();
+        return this;
+    }
+
+
 }
 
 
diff --git a/Dfe.PrepareConversions/Dfe.PrepareConversions.CypressTests/cypress/pages/projectTaskList.js b/Dfe.PrepareConversions/Dfe.PrepareConversions.CypressTests/cypress/pages/projectTaskList.js
index 79edbee19..2a0638ddc 100644
--- a/Dfe.PrepareConversions/Dfe.PrepareConversions.CypressTests/cypress/pages/projectTaskList.js
+++ b/Dfe.PrepareConversions/Dfe.PrepareConversions.CypressTests/cypress/pages/projectTaskList.js
@@ -24,7 +24,7 @@ export default class ProjectTaskList extends BasePage {
         ofstedLink: 'a[href*="/school-performance-ofsted-information"]',
         keyStageLink: (keyStageNumber) => `a[href*="/key-stage-${keyStageNumber}-performance-tables"]`,
         createNewConversionButton: '[data-cy="create_new_conversion_btn"]',
-        recordDecisionButton: '[data-cy="record_decision_btn"]',
+        recordDecisionButton: '[data-cy="record_decision_error_btn"]',
         schoolName: '[data-cy="school-name"]',
         urn: '[data-cy="urn"]',
         urnId: '.govuk-caption-xl',
diff --git a/Dfe.PrepareConversions/Dfe.PrepareConversions/Areas/Transfers/Pages/Projects/ProjectAssignment/Index.cshtml b/Dfe.PrepareConversions/Dfe.PrepareConversions/Areas/Transfers/Pages/Projects/ProjectAssignment/Index.cshtml
index 009d73d84..03e5ca012 100644
--- a/Dfe.PrepareConversions/Dfe.PrepareConversions/Areas/Transfers/Pages/Projects/ProjectAssignment/Index.cshtml
+++ b/Dfe.PrepareConversions/Dfe.PrepareConversions/Areas/Transfers/Pages/Projects/ProjectAssignment/Index.cshtml
@@ -47,7 +47,7 @@
                 </select>
 
                 <div class="govuk-button-group govuk-!-margin-top-5">
-                    <button class="govuk-button" data-module="govuk-button">
+                    <button class="govuk-button" data-module="govuk-button" data-cy="continue-Btn">
                         Continue
                     </button>
                     <input type="hidden" name="UnassignDeliveryOfficer" id="UnassignDeliveryOfficer" />
diff --git a/Dfe.PrepareConversions/Dfe.PrepareConversions/Areas/Transfers/Pages/TaskList/Decision/Summary.cshtml b/Dfe.PrepareConversions/Dfe.PrepareConversions/Areas/Transfers/Pages/TaskList/Decision/Summary.cshtml
index 0a02ae348..fe455e471 100644
--- a/Dfe.PrepareConversions/Dfe.PrepareConversions/Areas/Transfers/Pages/TaskList/Decision/Summary.cshtml
+++ b/Dfe.PrepareConversions/Dfe.PrepareConversions/Areas/Transfers/Pages/TaskList/Decision/Summary.cshtml
@@ -43,7 +43,7 @@
          }
          else
          {
-            <strong class="govuk-tag @decisionClass" id="decision">@decisionName</strong>
+            <strong class="govuk-tag @decisionClass" data-cy="decision_name" id="decision">@decisionName</strong>
          }
 
       </dd>
diff --git a/Dfe.PrepareConversions/Dfe.PrepareConversions/Pages/Groups/ProjectGroupAssignment.cshtml b/Dfe.PrepareConversions/Dfe.PrepareConversions/Pages/Groups/ProjectGroupAssignment.cshtml
index c04f5aa7b..9e85e0b47 100644
--- a/Dfe.PrepareConversions/Dfe.PrepareConversions/Pages/Groups/ProjectGroupAssignment.cshtml
+++ b/Dfe.PrepareConversions/Dfe.PrepareConversions/Pages/Groups/ProjectGroupAssignment.cshtml
@@ -46,7 +46,7 @@
             </select>
 
             <div class="govuk-button-group govuk-!-margin-top-5">
-               <button class="govuk-button" data-module="govuk-button">
+               <button class="govuk-button" data-module="govuk-button" data-cy="continue-Btn">
                   Continue
                </button>
                <input type="hidden" name="UnassignDeliveryOfficer" id="UnassignDeliveryOfficer"/>
diff --git a/Dfe.PrepareConversions/Dfe.PrepareConversions/Pages/ProjectAssignment/FormAMatProjectAssignment.cshtml b/Dfe.PrepareConversions/Dfe.PrepareConversions/Pages/ProjectAssignment/FormAMatProjectAssignment.cshtml
index 709d22988..f35bd1956 100644
--- a/Dfe.PrepareConversions/Dfe.PrepareConversions/Pages/ProjectAssignment/FormAMatProjectAssignment.cshtml
+++ b/Dfe.PrepareConversions/Dfe.PrepareConversions/Pages/ProjectAssignment/FormAMatProjectAssignment.cshtml
@@ -47,7 +47,7 @@
             </select>
 
             <div class="govuk-button-group govuk-!-margin-top-5">
-               <button class="govuk-button" data-module="govuk-button">
+               <button class="govuk-button" data-module="govuk-button" data-cy="continue-Btn">
                   Continue
                </button>
                <input type="hidden" name="UnassignDeliveryOfficer" id="UnassignDeliveryOfficer"/>
diff --git a/Dfe.PrepareConversions/Dfe.PrepareConversions/Pages/ProjectAssignment/Index.cshtml b/Dfe.PrepareConversions/Dfe.PrepareConversions/Pages/ProjectAssignment/Index.cshtml
index cab492262..ecbbca328 100644
--- a/Dfe.PrepareConversions/Dfe.PrepareConversions/Pages/ProjectAssignment/Index.cshtml
+++ b/Dfe.PrepareConversions/Dfe.PrepareConversions/Pages/ProjectAssignment/Index.cshtml
@@ -47,7 +47,7 @@
             </select>
 
             <div class="govuk-button-group govuk-!-margin-top-5">
-               <button class="govuk-button" data-module="govuk-button">
+               <button class="govuk-button" data-module="govuk-button" data-cy="continue-Btn">
                   Continue
                </button>
                <input type="hidden" name="UnassignDeliveryOfficer" id="UnassignDeliveryOfficer"/>
diff --git a/Dfe.PrepareConversions/Dfe.PrepareConversions/Pages/Shared/_ProjectHeader.cshtml b/Dfe.PrepareConversions/Dfe.PrepareConversions/Pages/Shared/_ProjectHeader.cshtml
index 2c054e82f..66d6f56f4 100644
--- a/Dfe.PrepareConversions/Dfe.PrepareConversions/Pages/Shared/_ProjectHeader.cshtml
+++ b/Dfe.PrepareConversions/Dfe.PrepareConversions/Pages/Shared/_ProjectHeader.cshtml
@@ -9,7 +9,7 @@
 </div>
    @if (Model.IsReadOnly)
    {
-      <div class="govuk-grid-column-two-thirds"> 
+      <div class="govuk-grid-column-two-thirds" data-cy="approved-message_banner"> 
          <div class="govuk-notification-banner" role="region" aria-labelledby="govuk-notification-banner-title" data-module="govuk-notification-banner">
                <div class="govuk-notification-banner__header">
                   <h2 class="govuk-notification-banner__title" id="govuk-notification-banner-title">
diff --git a/Dfe.PrepareConversions/Dfe.PrepareConversions/Pages/TaskList/Decision/DecisionApprovedInfo.cshtml b/Dfe.PrepareConversions/Dfe.PrepareConversions/Pages/TaskList/Decision/DecisionApprovedInfo.cshtml
index 990b817e5..4216047d2 100644
--- a/Dfe.PrepareConversions/Dfe.PrepareConversions/Pages/TaskList/Decision/DecisionApprovedInfo.cshtml
+++ b/Dfe.PrepareConversions/Dfe.PrepareConversions/Pages/TaskList/Decision/DecisionApprovedInfo.cshtml
@@ -16,10 +16,10 @@
 }
 
 <div class="govuk-panel govuk-panel--confirmation">
-    <h1 class="govuk-panel__title">
+    <h1 class="govuk-panel__title" data-cy="decision-recorded-confirmation">
         Decision recorded
     </h1>
-    <div class="govuk-panel__body">
+    <div class="govuk-panel__body" data-cy="approved-body">
         @Model.SchoolName<br><strong>Approved @(Model.Decision.ApprovedConditionsSet.HasValue && Model.Decision.ApprovedConditionsSet.Value ? "with conditions" : string.Empty)</strong>
     </div>
 </div>
@@ -44,7 +44,7 @@
     <li>links to SharePoint folders</li>
     <li>external contact details</li>
 </ul>
-<a href="@Configuration["ApplicationLinks:CompleteHandoverProjectListLink"]" role="button" draggable="false" class="govuk-button govuk-button--start" data-module="govuk-button">
+<a href="@Configuration["ApplicationLinks:CompleteHandoverProjectListLink"]" role="button" draggable="false" class="govuk-button govuk-button--start" data-module="govuk-button" data-cy="open-in-compelete-btn">
     Open project in compelete
     <svg class="govuk-button__start-icon" xmlns="http://www.w3.org/2000/svg" width="17.5" height="19" viewBox="0 0 33 40" aria-hidden="true" focusable="false">
         <path fill="currentColor" d="M0 0h13l20 20-20 20H0l20-20z" />
diff --git a/Dfe.PrepareConversions/Dfe.PrepareConversions/Pages/TaskList/ProjectDates/ConfirmProjectDates.cshtml b/Dfe.PrepareConversions/Dfe.PrepareConversions/Pages/TaskList/ProjectDates/ConfirmProjectDates.cshtml
index 031d95f28..fafa46935 100644
--- a/Dfe.PrepareConversions/Dfe.PrepareConversions/Pages/TaskList/ProjectDates/ConfirmProjectDates.cshtml
+++ b/Dfe.PrepareConversions/Dfe.PrepareConversions/Pages/TaskList/ProjectDates/ConfirmProjectDates.cshtml
@@ -8,7 +8,7 @@
 
 @section BeforeMain
 {
-   <govuk-back-link link-item="@Links.TaskList.Index"/>
+	<govuk-back-link link-item="@Links.TaskList.Index" data-cy="back-link" />
 }
 
 <div class="govuk-grid-row">