diff --git a/.github/workflows/cicd-1-pull-request.yaml b/.github/workflows/cicd-1-pull-request.yaml
index 1fc66d7..6cf5b71 100644
--- a/.github/workflows/cicd-1-pull-request.yaml
+++ b/.github/workflows/cicd-1-pull-request.yaml
@@ -34,6 +34,7 @@ jobs:
     with:
       environments: '["review"]'
       commit_sha: ${{ github.event.pull_request.head.sha }}
+      branch_name: ${{ github.event.pull_request.head.ref }}
     secrets: inherit
 
   # Build and publish a pre-release when the 'deploy' label is present.
@@ -58,4 +59,5 @@ jobs:
       environments: '["review"]'
       release_tag: pr-${{ github.event.pull_request.number }}
       commit_sha: ${{ github.event.pull_request.head.sha }}
+      branch_name: ${{ github.event.pull_request.head.ref }}
     secrets: inherit
diff --git a/.github/workflows/cicd-2-main-branch.yaml b/.github/workflows/cicd-2-main-branch.yaml
index 94f14e1..dabe8b4 100644
--- a/.github/workflows/cicd-2-main-branch.yaml
+++ b/.github/workflows/cicd-2-main-branch.yaml
@@ -134,6 +134,7 @@ jobs:
     with:
       environments: '["dev"]'
       commit_sha: ${{ github.sha }}
+      branch_name: ${{ github.ref_name }}
     secrets: inherit
 
   deploy-app-dev:
@@ -147,6 +148,7 @@ jobs:
       environments: '["dev"]'
       release_tag: ${{ needs.resolve.outputs.release_tag }}
       commit_sha: ${{ github.sha }}
+      branch_name: ${{ github.ref_name }}
     secrets: inherit
 
   # ---- preprod --------------------------------------------------------------
@@ -164,6 +166,7 @@ jobs:
     with:
       environments: '["preprod"]'
       commit_sha: ${{ github.sha }}
+      branch_name: ${{ github.ref_name }}
     secrets: inherit
 
   deploy-app-preprod:
@@ -180,6 +183,7 @@ jobs:
       environments: '["preprod"]'
       release_tag: ${{ needs.resolve.outputs.release_tag }}
       commit_sha: ${{ github.sha }}
+      branch_name: ${{ github.ref_name }}
     secrets: inherit
 
   # ---- review (manual only) -------------------------------------------------
@@ -194,6 +198,7 @@ jobs:
     with:
       environments: '["review"]'
       commit_sha: ${{ github.sha }}
+      branch_name: ${{ github.ref_name }}
     secrets: inherit
 
   deploy-app-review:
@@ -207,4 +212,5 @@ jobs:
       environments: '["review"]'
       release_tag: ${{ needs.resolve.outputs.release_tag }}
       commit_sha: ${{ github.sha }}
+      branch_name: ${{ github.ref_name }}
     secrets: inherit
diff --git a/.github/workflows/cicd-3-release.yaml b/.github/workflows/cicd-3-release.yaml
index 58289e6..cd21d36 100644
--- a/.github/workflows/cicd-3-release.yaml
+++ b/.github/workflows/cicd-3-release.yaml
@@ -42,6 +42,7 @@ jobs:
       environment: dev
       release_tag: ${{ github.ref_name }}
       commit_sha: ${{ github.sha }}
+      branch_name: main
     secrets: inherit
 
   deploy-preprod:
@@ -52,6 +53,7 @@ jobs:
       environment: preprod
       release_tag: ${{ github.ref_name }}
       commit_sha: ${{ github.sha }}
+      branch_name: main
     secrets: inherit
 
   prod-approval:
@@ -71,4 +73,5 @@ jobs:
       environment: prod
       release_tag: ${{ github.ref_name }}
       commit_sha: ${{ github.sha }}
+      branch_name: main
     secrets: inherit
diff --git a/.github/workflows/stage-4-deploy-app.yaml b/.github/workflows/stage-4-deploy-app.yaml
index 67c60f4..9bb7994 100644
--- a/.github/workflows/stage-4-deploy-app.yaml
+++ b/.github/workflows/stage-4-deploy-app.yaml
@@ -15,6 +15,11 @@ on:
         description: Commit SHA used to trigger the ADO pipeline
         required: true
         type: string
+      branch_name:
+        description: Git branch containing commit_sha
+        required: false
+        default: "main"
+        type: string
 
 jobs:
   deploy:
@@ -46,13 +51,16 @@ jobs:
           ENVIRONMENT: ${{ matrix.environment }}
           RELEASE_TAG: ${{ inputs.release_tag }}
           COMMIT_SHA: ${{ inputs.commit_sha }}
+          BRANCH_NAME: ${{ inputs.branch_name }}
           ADO_PROJECT: ${{ github.event.repository.name }}
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
           source "infrastructure/environments/${ENVIRONMENT}/variables.sh"
+          SOURCE_BRANCH="${BRANCH_NAME:-main}"
 
           echo "Starting Azure DevOps pipeline \"Deploy Gateway App - ${ENVIRONMENT}\"..."
           RUN_ID=$(az pipelines run \
+            --branch "${SOURCE_BRANCH}" \
             --commit-id "${COMMIT_SHA}" \
             --name "Deploy Gateway App - ${ENVIRONMENT}" \
             --org https://dev.azure.com/nhse-dtos \
diff --git a/.github/workflows/stage-4-deploy-env.yaml b/.github/workflows/stage-4-deploy-env.yaml
index c1b9b2d..947cfac 100644
--- a/.github/workflows/stage-4-deploy-env.yaml
+++ b/.github/workflows/stage-4-deploy-env.yaml
@@ -15,6 +15,11 @@ on:
         description: Commit SHA used to trigger the ADO pipeline
         required: true
         type: string
+      branch_name:
+        description: Git branch containing commit_sha
+        required: false
+        default: "main"
+        type: string
 
 jobs:
   deploy-infra:
@@ -25,6 +30,7 @@ jobs:
     with:
       environments: '["${{ inputs.environment }}"]'
       commit_sha: ${{ inputs.commit_sha }}
+      branch_name: ${{ inputs.branch_name }}
     secrets: inherit
 
   deploy-app:
@@ -37,6 +43,7 @@ jobs:
       environments: '["${{ inputs.environment }}"]'
       release_tag: ${{ inputs.release_tag }}
       commit_sha: ${{ inputs.commit_sha }}
+      branch_name: ${{ inputs.branch_name }}
     secrets: inherit
 
   smoke-test:
diff --git a/.github/workflows/stage-4-deploy.yaml b/.github/workflows/stage-4-deploy.yaml
index b8a7818..370c8fc 100644
--- a/.github/workflows/stage-4-deploy.yaml
+++ b/.github/workflows/stage-4-deploy.yaml
@@ -11,6 +11,11 @@ on:
         description: Commit SHA used to trigger the ADO pipeline
         required: true
         type: string
+      branch_name:
+        description: Git branch containing commit_sha
+        required: false
+        default: "main"
+        type: string
 
 jobs:
   deploy:
@@ -41,12 +46,15 @@ jobs:
         env:
           ENVIRONMENT: ${{ matrix.environment }}
           COMMIT_SHA: ${{ inputs.commit_sha }}
+          BRANCH_NAME: ${{ inputs.branch_name }}
           ADO_PROJECT: ${{ github.event.repository.name }}
         run: |
           source "infrastructure/environments/${ENVIRONMENT}/variables.sh"
+          SOURCE_BRANCH="${BRANCH_NAME:-main}"
 
           echo "Starting Azure devops pipeline \"Deploy to Azure - ${ENVIRONMENT}\"..."
           RUN_ID=$(az pipelines run \
+            --branch "${SOURCE_BRANCH}" \
             --commit-id "${COMMIT_SHA}" \
             --name "Deploy to Azure - ${ENVIRONMENT}" \
             --org https://dev.azure.com/nhse-dtos \