diff --git a/.circleci/config.yml b/.circleci/config.yml
index 3ab04abb03..a6154e78e4 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -101,11 +101,6 @@ jobs:
           name: Login to GitHub
           command: |
             echo $AUTH_TOKEN_GITHUB | gh auth login --with-token
-      - run:
-          name: Define target branch
-          command: |
-            TARGET_BRANCH=$(gh pr view $CIRCLE_PULL_REQUEST --json baseRefName --jq '.baseRefName')
-            echo "Target Branch: $TARGET_BRANCH"
       - run:
           name: Install Sauce Connect
           command: |
@@ -131,14 +126,17 @@ jobs:
           background: true
           command: sc run --username ${SAUCE_USERNAME} --access-key ${SAUCE_ACCESS_KEY} --tunnel-name "circleci-tunnel" --region "us-west-1" --proxy-localhost allow
       - run:
+          name: Prepare and run e2e tests
           no_output_timeout: 30m
           command: |
+            TARGET_BRANCH=$(gh pr view $CIRCLE_PULL_REQUEST --json baseRefName --jq '.baseRefName')
+            echo "Using target branch: $TARGET_BRANCH"
             export NVM_DIR="$HOME/.nvm"
             [ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"
             cd /home/circleci/app/Packages/Application/Neos.Neos.Ui
             nvm install
             nvm use
-            make test-e2e-saucelabs
+            make test-e2e-saucelabs "$TARGET_BRANCH"
       - store_artifacts:
           path: /home/circleci/app/Data/Logs
       - persist_to_workspace:
diff --git a/.sauce/config1Dimension.yml b/.sauce/config1Dimension.yml
index 519bb7c8eb..8fc206fc5f 100644
--- a/.sauce/config1Dimension.yml
+++ b/.sauce/config1Dimension.yml
@@ -12,6 +12,8 @@ sauce:
     build: Release $CI_COMMIT_SHORT_SHA
   tunnel:
     name: "circleci-tunnel"
+env:
+  branch: $TARGET_BRANCH
 testcafe:
   version: 3.6.2
 # Controls what files are available in the context of a test run (unless explicitly excluded by .sauceignore).
diff --git a/Makefile b/Makefile
index 8c943de2f8..a9289022c7 100644
--- a/Makefile
+++ b/Makefile
@@ -108,7 +108,7 @@ test:
 
 ## Executes integration tests on saucelabs.
 test-e2e-saucelabs:
-	bash Tests/IntegrationTests/e2e-saucelabs.sh
+	bash Tests/IntegrationTests/e2e-saucelabs.sh $(TARGET_BRANCH)
 
 ## Executes integration tests locally.
 test-e2e:
diff --git a/Tests/IntegrationTests/e2e-saucelabs.sh b/Tests/IntegrationTests/e2e-saucelabs.sh
index 5f70a9af10..37d459641a 100755
--- a/Tests/IntegrationTests/e2e-saucelabs.sh
+++ b/Tests/IntegrationTests/e2e-saucelabs.sh
@@ -25,6 +25,8 @@ mv DistributionPackages DummyDistributionPackages
 mkdir DistributionPackages
 
 ln -s "../Packages/Application/Neos.Neos.Ui/Tests/IntegrationTests/SharedNodeTypesPackage" DistributionPackages/Neos.TestNodeTypes
+export TARGET_BRANCH=$1
+echo "Using target branch: $TARGET_BRANCH"
 
 for fixture in Packages/Application/Neos.Neos.Ui/Tests/IntegrationTests/Fixtures/*/; do
     echo "$fixture"
@@ -49,7 +51,8 @@ for fixture in Packages/Application/Neos.Neos.Ui/Tests/IntegrationTests/Fixtures
     ./flow resource:publish
 
     cd Packages/Application/Neos.Neos.Ui
-    saucectl run --config .sauce/config${dimension}.yml
+    echo "Running saucectl with config .sauce/config${dimension}.yml for $TARGET_BRANCH"
+    saucectl run --config .sauce/config${dimension}.yml --env TARGET_BRANCH=$1
     cd ../../..
     rm -f DistributionPackages/Neos.TestSite