diff --git a/src/PowerShell/Utilities/ScriptBuilder.ts b/src/PowerShell/Utilities/ScriptBuilder.ts
index d43060e8..fb4fbfcb 100644
--- a/src/PowerShell/Utilities/ScriptBuilder.ts
+++ b/src/PowerShell/Utilities/ScriptBuilder.ts
@@ -12,7 +12,9 @@ export default class ScriptBuilder {
             command += `Connect-AzAccount -ServicePrincipal -Tenant '${tenantId}' -Credential \
             (New-Object System.Management.Automation.PSCredential('${args.servicePrincipalId}',(ConvertTo-SecureString '${args.servicePrincipalKey.replace("'", "''")}' -AsPlainText -Force))) \
                 -Environment '${args.environment}' | out-null;`;
-            if (args.scopeLevel === Constants.Subscription) {
+            if (args.scopeLevel === Constants.Subscription && 
+                args.subscriptionId && 
+                args.subscriptionId.length > 0) {
                 command += `Set-AzContext -SubscriptionId '${args.subscriptionId}' -TenantId '${tenantId}' | out-null;`;
             }
         }
diff --git a/src/main.ts b/src/main.ts
index cbe0b20e..87e9f4cb 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -31,12 +31,17 @@ async function main() {
         let tenantId = secrets.getSecret("$.tenantId", false);
         let subscriptionId = secrets.getSecret("$.subscriptionId", false);
         const enableAzPSSession = core.getInput('enable-AzPSSession').toLowerCase() === "true";
-        if (!servicePrincipalId || !servicePrincipalKey || !tenantId || !subscriptionId) {
-            throw new Error("Not all values are present in the creds object. Ensure clientId, clientSecret, tenantId and subscriptionId are supplied.");
+        if (!servicePrincipalId || !servicePrincipalKey || !tenantId) {
+            throw new Error("Not all values are present in the creds object. Ensure clientId, clientSecret and tenantId are supplied.");
         }
         // Attempting Az cli login
-        await executeAzCliCommand(`login --service-principal -u "${servicePrincipalId}" -p "${servicePrincipalKey}" --tenant "${tenantId}"`, true);
-        await executeAzCliCommand(`account set --subscription "${subscriptionId}"`, true);
+        if (!subscriptionId) {
+            await executeAzCliCommand(`login --allow-no-subscriptions --service-principal -u "${servicePrincipalId}" -p "${servicePrincipalKey}" --tenant "${tenantId}"`, true);
+        }
+        else {
+            await executeAzCliCommand(`login --service-principal -u "${servicePrincipalId}" -p "${servicePrincipalKey}" --tenant "${tenantId}"`, true);
+            await executeAzCliCommand(`account set --subscription "${subscriptionId}"`, true);
+        }
         isAzCLISuccess = true;
         if (enableAzPSSession) {
             // Attempting Az PS login