---
schema_version: "1"
id: 47c205928a06eedbee66ec7c0036f022c6e241aa369306c5f42155526f24e325
title: Troubleshoot Data Extension Failures
collection: admin
version: current
locale: en-us
portal_url: https://docs.salesforce.com/admin/current/en-us/mktg/264-0-0/mc_dat_data_extension_troubleshoot.md
canonical_url: https://help.salesforce.com/s/articleView?id=mktg.mc_dat_data_extension_troubleshoot.htm&release=264.0.0&type=5
source_site: help.salesforce.com
content_type: documentation
content_hash: 598ff5a246bc51dd99d91632348f016f15d0aa1c77251f02a79796d4cfd6fb52
description: During the data extension sync process, different statuses appear. If for some reason the process fails, troubleshoot according to these guidelines.
products:
  - Marketing
  - Marketing Cloud Intelligence
release: "264"
---
# Troubleshoot Data Extension Failures

During the data extension sync process, different statuses appear. If for some reason the process fails, troubleshoot according to these guidelines.

### Required Editions

<table class="slds-table slds-table_bordered slds-max-medium-table_stacked slds-m-bottom_small edition"><colgroup><col></colgroup><tbody><tr class=""><td class="slds-cell-wrap" style="vertical-align:top;">Available in: Intelligence Reports Advanced</td></tr></tbody></table>

![Note](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-mktg-mc_data_management_and_analytics-264-0-0-production-enus/7988f60d-cd94-4b42-8836-dc11773564b5/images/icon_note.png)

Note It’s recommended to not modify data extensions after they’re connected to avoid sync failures.

- **Pending**—The data extension is connecting. It can take up to 24 hours to populate data.
- **Complete**—The data extension is connected. Data is synced once a day.
- **Failed**—The data extension failed to sync. Here are some possible reasons:
    - A field was renamed or deleted from the data extension. Disconnect the data extension and then contact Salesforce Customer Support.
    - There were invalid column names in your data extension.
    - The data extension contained one of these column names: date\_id, location\_id, dat\_account\_currency, dat\_exchange\_rate, pacing\_period, pacing\_end\_date, or row\_count.
    - The data extension contained the same column name more than once.
        
        ![Note](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-mktg-mc_data_management_and_analytics-264-0-0-production-enus/7988f60d-cd94-4b42-8836-dc11773564b5/images/icon_note.png)
        
        Note Data extensions aren’t case sensitive. For example: campaign name = campaign\_name
    - A technical error occurred. It’s recommended to wait 24 hours.
    - If for some reason the connection to the data extension failed, try deleting the automation of the data extension in Automation Studio.