diff --git a/.github/workflows/backport.yml b/.github/workflows/backport.yml
index 3ecf66b17da9..402341a9c389 100644
--- a/.github/workflows/backport.yml
+++ b/.github/workflows/backport.yml
@@ -33,6 +33,6 @@ jobs:
       - name: Backport
         uses: zephyrproject-rtos/action-backport@7e74f601d11eaca577742445e87775b5651a965f # v2.0.3-3
         with:
-          github_token: ${{ secrets.GITHUB_TOKEN }}
+          github_token: ${{ secrets.NCS_GITHUB_TOKEN }}
           issue_labels: Backport
           labels_template: '["Backport"]'
diff --git a/.github/workflows/manifest-PR.yml b/.github/workflows/manifest-PR.yml
index 0f3bd738a36c..6e2430ec901e 100644
--- a/.github/workflows/manifest-PR.yml
+++ b/.github/workflows/manifest-PR.yml
@@ -4,6 +4,7 @@ on:
     types: [opened, synchronize, closed, reopened]
     branches:
       - main
+      - ncs-v*-branch
 
 permissions:
   contents: read
@@ -11,9 +12,28 @@ permissions:
 jobs:
   call-manifest-pr-action:
     runs-on: ubuntu-latest
+    outputs:
+      base-branch: ${{ steps.set-base-branch.outputs.base_branch }}
     steps:
+      #      Determine the base branch:
+      #        * sdk-zephyr/main -> sdk-nrf/main
+      #        * sdk-zephyr/ncs-vX.Y-branch -> sdk-nrf/vX.Y-branch
+      - name: Set base branch
+        id: set-base-branch
+        run: |
+          if [[ "${{ github.event.pull_request.base.ref }}" == "main" ]]; then
+            echo "base_branch=main" >> "$GITHUB_OUTPUT"
+          elif [[ "${{ github.event.pull_request.base.ref }}" =~ ^ncs-(v[0-9]+\.[0-9]+-branch)$ ]]; then
+            branch_name="${{ github.event.pull_request.base.ref }}"
+            branch_name="${branch_name#ncs-}"
+            echo "base_branch=${branch_name}" >> "$GITHUB_OUTPUT"
+          else
+            echo "Error: Unsupported base branch: ${{ github.event.pull_request.base.ref }}" >&2
+            exit 1
+          fi
       - name: handle manifest PR
         uses: nrfconnect/action-manifest-pr@main
         with:
           token: ${{ secrets.NCS_GITHUB_TOKEN }}
           manifest-pr-title-details: ${{ github.event.pull_request.title }}
+          base-branch: ${{ steps.set-base-branch.outputs.base_branch }}