--- title: Common Sync Error Messages description: Other errors that can occur during the sync process and what they mean. --- [Skip to content](https://kb.clouddepot.com/knowledge/troubleshooting#main-content) English Show submenu for translations ![CoudDepot_LOGO_RGB.png\]](https://kb.clouddepot.com/hs-fs/hubfs/CoudDepot_LOGO_RGB.png?height=40&name=CoudDepot_LOGO_RGB.png) - [Read Our Blog](https://blog.clouddepot.com/) Open main navigation Close main navigation - [Read Our Blog](https://blog.clouddepot.com/) - English Show submenu for translations - [Go to clouddepot.com](https://www.clouddepot.com/) [Go to clouddepot.com](https://www.clouddepot.com/) Hello. How can we help you? - There are no suggestions because the search field is empty. 1. [Cloud Depot Knowledge Base](https://kb.clouddepot.com/knowledge?hsLang=en) 2. [Product - Autotask to Xero](https://kb.clouddepot.com/knowledge/product-autotask-to-xero?hsLang=en) 3. [Troubleshooting](https://kb.clouddepot.com/knowledge/product-autotask-to-xero?hsLang=en#troubleshooting) # Common Sync Error Messages ## Other errors that can occur during the sync process and what they mean. *Don't be afraid to reach out for help if you get stuck- we also provide a online chat service between the hours of 10:00 and 19:00 (UTC +12) Monday to Friday* #### My Sync has stopped what do I do? [Please review this article first ](https://kb.clouddepot.com/knowledge/unable-to-sync-invoice?hsLang=en) ### **Common Sync Fault Messages** #### Unable to sync Invoice. No valid contact for the invoice [Please see this article ](https://kb.clouddepot.com/knowledge/unable-to-sync-invoice.-no-valid-contact-for-the-invoice?hsLang=en) #### **This document cannot be edited as it has a payment or credit note allocated to it.** This error occurs when an invoice is created in Autotask with the same invoice number as an invoice in Xero and is trying to sync to Xero, but the invoice  is marked as paid or partially paid in Xero, and sync cannot proceed. #### **What does "Invoice not of valid status for modification" mean?** This is a Xero related fault, the error means that invoice number already exists in Xero for the invoice you are trying to sync from Autotask. To fix this issue you can change the invoice number already in Xero then try using the [re-sync feature](https://kb.clouddepot.com/knowledge/how-to-resync-an-in?hsLang=en) to pull the invoice down again. #### **A validation exception occurred - Account code xxx has been archived, or has been deleted** [Please see this article on how to resolve this issue.](https://kb.clouddepot.com/knowledge/a-validation-exception-occurred-account-code-xxx-has-been-archived-or-has-been-deleted?hsLang=en) #### **The access token has expired** This is a Xero related fault, the error means the invoice wasn't able to process within the allocated time-frame. #### **HTTP Error 503. The service is unavailable.** Xero or Autotask API fault - this is caused by overloading, outage or maintenance with the partner API. This fault is not very common. #### **Organisation is not subscribed to currency** Configuration error - your currency in Cloud Depot doesn't match your currency in Xero. #### **Timeout Expired error when connecting to Autotask** The Autotask API gets overloaded from time to time and this error can occur. In most cases it will self-correct. #### **Error connecting to Xero** The Xero API gets overloaded from time to time and this error can occur. In most cases it will self-correct. #### **Invoice Amounts do not match** This is a fail safe check to ensure that our system doesn't sync values that differ from Autotask. Please contact support if you have this error for further investigation. #### **Invoice contains no line items skipping over** No billing items were found. This is usually found on voided invoices but can also be a Autotask fault. If your are using Autotask Line of Business, try associating your API user to all line of business items. #### **Invalid email address can't sync invoice** Autotask allows for non-compliant email addresses to be entered into the contact's details - this will cause a Xero validation exception. Please check the contact's email address. You may have to update this in Xero and allow it to re-sync back to Cloud Depot. #### **Organisation is not subscribed to currency** Although you are using multi-currency in Xero, you still need to add the currency you want to use. In Xero, you can do so via Settings > General Settings > Currencies #### **Autotask Invoice number is empty** [Please see this online article regarding this issue](https://kb.clouddepot.com/knowledge/delay-in-processing-invoices?hsLang=en) #### Unable to sync Invoice. No valid contact for the invoice [Please see this online article regarding this issue](https://kb.clouddepot.com/knowledge/unable-to-sync-invoice.-no-valid-contact-for-the-invoice?hsLang=en)             ![](https://kb.clouddepot.com/hubfs/Knowledge%20Base%20Import/support.clouddepot.comsupportsolutionsarticles5000769621-troubleshootinghit-3.gif) - [Product - Autotask to Xero](https://kb.clouddepot.com/knowledge/product-autotask-to-xero?hsLang=en#main-content) - [Getting Started](https://kb.clouddepot.com/knowledge/product-autotask-to-xero?hsLang=en#getting-started) - [Setup](https://kb.clouddepot.com/knowledge/product-autotask-to-xero?hsLang=en#setup) - [Troubleshooting](https://kb.clouddepot.com/knowledge/product-autotask-to-xero?hsLang=en#troubleshooting) - [Product - Recurring Payment Service (RPS)](https://kb.clouddepot.com/knowledge/product-recurring-payment-service-rps?hsLang=en#main-content) - [Getting Started](https://kb.clouddepot.com/knowledge/product-recurring-payment-service-rps?hsLang=en#getting-started) - [Customers & Invoices](https://kb.clouddepot.com/knowledge/product-recurring-payment-service-rps?hsLang=en#customers-invoices) - [Payment Rules & Auto Pay](https://kb.clouddepot.com/knowledge/product-recurring-payment-service-rps?hsLang=en#payment-rules-auto-pay) - [Customer Portal](https://kb.clouddepot.com/knowledge/product-recurring-payment-service-rps?hsLang=en#customer-portal) - [Surcharges](https://kb.clouddepot.com/knowledge/product-recurring-payment-service-rps?hsLang=en#surcharges) - [Payment Gateways](https://kb.clouddepot.com/knowledge/product-recurring-payment-service-rps?hsLang=en#payment-gateways) - [Troubleshooting](https://kb.clouddepot.com/knowledge/product-recurring-payment-service-rps?hsLang=en#troubleshooting) - [Product - HostedPay](https://kb.clouddepot.com/knowledge/product-hostedpay?hsLang=en) - [Integrations](https://kb.clouddepot.com/knowledge/integrations?hsLang=en#main-content) - [Xero](https://kb.clouddepot.com/knowledge/integrations?hsLang=en#xero) - [Autotask](https://kb.clouddepot.com/knowledge/integrations?hsLang=en#autotask) - [HaloPSA](https://kb.clouddepot.com/knowledge/integrations?hsLang=en#halopsa) - [Support, security & updates](https://kb.clouddepot.com/knowledge/support-security-updates?hsLang=en) - [Billing and Accounting](https://kb.clouddepot.com/knowledge/billing-and-accounting?hsLang=en) - [Setting up Cloud Depot](https://kb.clouddepot.com/knowledge/setting-up-cloud-depot?hsLang=en) - [Cloud Depot Status and Contacting Support](https://kb.clouddepot.com/knowledge/cloud-depot-status-and-contacting-support?hsLang=en#main-content) - [View Service Status](https://kb.clouddepot.com/knowledge/cloud-depot-status-and-contacting-support?hsLang=en#view-service-status) - [Support](https://kb.clouddepot.com/knowledge/cloud-depot-status-and-contacting-support?hsLang=en#support) - [Sync Customization Documentation](https://kb.clouddepot.com/knowledge/sync-customization-documentation?hsLang=en) - [Read Our Blog](https://blog.clouddepot.com/) # Cloud Depot Cloud Depot Help Center Copyright © 2026, Cloud Depot