diff --git a/.github/workflows/deploy_tre.yml b/.github/workflows/deploy_tre.yml
index 54689239a..614a068fc 100644
--- a/.github/workflows/deploy_tre.yml
+++ b/.github/workflows/deploy_tre.yml
@@ -32,6 +32,7 @@ jobs:
         ${{ (github.event_name == 'push' && 'extended or extended_aad')
         || 'extended or extended_aad or shared_services or airlock' }}
       environmentName: ${{ github.event.inputs.environment || 'CICD' }}
+      E2E_TESTS_NUMBER_PROCESSES: 1
     secrets:
       AAD_TENANT_ID: ${{ secrets.AAD_TENANT_ID }}
       ACR_NAME: ${{ secrets.ACR_NAME }}
@@ -60,4 +61,3 @@ jobs:
       CORE_APP_SERVICE_PLAN_SKU: ${{ secrets.CORE_APP_SERVICE_PLAN_SKU }}
       WORKSPACE_APP_SERVICE_PLAN_SKU: ${{ secrets.WORKSPACE_APP_SERVICE_PLAN_SKU }}
       RESOURCE_PROCESSOR_NUMBER_PROCESSES_PER_INSTANCE: ${{ secrets.RESOURCE_PROCESSOR_NUMBER_PROCESSES_PER_INSTANCE }}
-      E2E_TESTS_NUMBER_PROCESSES: "1"
diff --git a/.github/workflows/deploy_tre_branch.yml b/.github/workflows/deploy_tre_branch.yml
index 1b74f6984..d28d95f53 100644
--- a/.github/workflows/deploy_tre_branch.yml
+++ b/.github/workflows/deploy_tre_branch.yml
@@ -58,6 +58,7 @@ jobs:
       prHeadSha: ${{ github.sha }}
       e2eTestsCustomSelector: ${{ github.event.inputs.e2eTestsCustomSelector }}
       environmentName: ${{ github.event.inputs.environment }}
+      E2E_TESTS_NUMBER_PROCESSES: 1
     secrets:
       AAD_TENANT_ID: ${{ secrets.AAD_TENANT_ID }}
       ACR_NAME: ${{ format('tre{0}', needs.prepare-not-main.outputs.refid) }}
@@ -87,4 +88,3 @@ jobs:
       CORE_APP_SERVICE_PLAN_SKU: ${{ secrets.CORE_APP_SERVICE_PLAN_SKU }}
       WORKSPACE_APP_SERVICE_PLAN_SKU: ${{ secrets.WORKSPACE_APP_SERVICE_PLAN_SKU }}
       RESOURCE_PROCESSOR_NUMBER_PROCESSES_PER_INSTANCE: ${{ secrets.RESOURCE_PROCESSOR_NUMBER_PROCESSES_PER_INSTANCE }}
-      E2E_TESTS_NUMBER_PROCESSES: "1"
diff --git a/.github/workflows/deploy_tre_reusable.yml b/.github/workflows/deploy_tre_reusable.yml
index e569ae14a..5ed631701 100644
--- a/.github/workflows/deploy_tre_reusable.yml
+++ b/.github/workflows/deploy_tre_reusable.yml
@@ -27,6 +27,10 @@ on:  # yamllint disable-line rule:truthy
         description: The name of the Github Action's environment this will deploy into
         type: string
         required: true
+      E2E_TESTS_NUMBER_PROCESSES:
+        description: ""
+        type: number
+        required: false
     secrets:
       AAD_TENANT_ID:
         description: ""
@@ -112,9 +116,6 @@ on:  # yamllint disable-line rule:truthy
       RESOURCE_PROCESSOR_NUMBER_PROCESSES_PER_INSTANCE:
         description: ""
         required: false
-      E2E_TESTS_NUMBER_PROCESSES:
-        description: ""
-        required: false
 
 # This will prevent multiple runs of this entire workflow.
 # We should NOT cancel in progress runs as that can destabilize the environment.
@@ -787,7 +788,7 @@ jobs:
           TRE_ID: "${{ secrets.TRE_ID }}"
           IS_API_SECURED: false
           WORKSPACE_APP_SERVICE_PLAN_SKU: ${{ secrets.WORKSPACE_APP_SERVICE_PLAN_SKU }}
-          E2E_TESTS_NUMBER_PROCESSES: ${{ secrets.E2E_TESTS_NUMBER_PROCESSES }}
+          E2E_TESTS_NUMBER_PROCESSES: ${{ inputs.E2E_TESTS_NUMBER_PROCESSES }}
 
       - name: Upload Test Results
         if: always()
diff --git a/.github/workflows/pr_comment_bot.yml b/.github/workflows/pr_comment_bot.yml
index 9698084c5..d45f22a21 100644
--- a/.github/workflows/pr_comment_bot.yml
+++ b/.github/workflows/pr_comment_bot.yml
@@ -150,6 +150,7 @@ jobs:
         (needs.pr_comment.outputs.command == 'run-tests-shared-services' && 'shared_services') ||
         (needs.pr_comment.outputs.command == 'run-tests' && '') }}
       environmentName: CICD
+      E2E_TESTS_NUMBER_PROCESSES: 1
     secrets:
       AAD_TENANT_ID: ${{ secrets.AAD_TENANT_ID }}
       ACR_NAME: ${{ format('tre{0}', needs.pr_comment.outputs.prRefId) }}
@@ -176,4 +177,3 @@ jobs:
       TRE_ID: ${{ format('tre{0}', needs.pr_comment.outputs.prRefId) }}
       CI_CACHE_ACR_NAME: ${{ secrets.ACR_NAME }}
       TF_LOG: ${{ secrets.TF_LOG }}
-      E2E_TESTS_NUMBER_PROCESSES: "1"