added a new section

Author: SnehaSudhirG

articles/automation/troubleshoot/runbooks.md

@@ -2,7 +2,7 @@
 title: Troubleshoot Azure Automation runbook issues
 description: This article tells how to troubleshoot and resolve issues with Azure Automation runbooks.
 services: automation
-ms.date: 02/06/2022
+ms.date: 02/21/2023
 ms.topic: troubleshooting
 ms.custom: has-adal-ref, devx-track-azurepowershell
 ---
@@ -729,6 +729,20 @@ Follow [Step 5 - Add authentication to manage Azure resources](../learn/powershe
 
 [Add permissions to Key Vault](../manage-runas-account.md#add-permissions-to-key-vault) to ensure that your Run As account has sufficient permissions to access Key Vault.
 
+## Scenario: 
+Runbook fails with ‘Parameter length exceeded’ error.
+
+### Issue: 
+Your runbook uses parameters and fails with the following error:
+*Total Length of Runbook Parameter names and values exceeds the limit of 30000 characters. To avoid this issue, use Automation Variables to pass values to runbook.*
+
+### Cause: 
+There is a limit to the total length of characters of all Parameters that can be provided in Python2.7, Python3.8 and PowerShell7.1 runbooks. The total length of all Parameter names, Parameter values must not exceed 30,000 characters.
+
+### Resolution: 
+To overcome this issue, you can use Azure Automation [Variables](../shared-resources/variables.md) to pass values to runbook. You can alternatively reduce the number of characters in Parameter names and Parameter values to ensure that the total length does not exceed 30000 characters. 
+
+
 ## Recommended documents
 
 * [Runbook execution in Azure Automation](../automation-runbook-execution.md)