If you are having difficulties posting ads, we recommend uninstalling your current Craigslist application and installing the Craigslist application on a Windows 10 or 11 computer. Once reinstalled, attempt to post your ad again.
To install a new Craigslist application, follow these steps:
- Login to your Dealer Spike Inventory Syndication (formally Auction123) Dashboard
- Navigate to Account Settings, which is on the left navigation bar under Preferences.
- Click the Craigslist tab at the top of the page.
- Click Application in the main section and then Download Installer on the right.
- After clicking the Download Installer button, a notification from your browser should prompt you to Run or Save the downloaded program.
You can select Run.

- After the application begins to run, you may receive a Security Warning confirming that you want to install the application.
Click Install.

- Now, you should see an Auction123 logo in your system tray. If you don’t, you will need to click the up arrow to see more applications. Once found, you’ll need to right click the 123 icon and click Finish Setup.


- If successful, a new tab will open in your browser with the following message:

- You have successfully installed the Auction123 Craigslist Client.
- Next, you will need to add your Credit Card information.
- Right click the 123 icon again and click Credit Card
- Enter your Credit Card information in the window that appears and then click Save
Please contact Dealer Spike Inventory Syndication(formally Auction123) Support at (888) 514-0123, Option 1 then Option 4 or email dis@dealerspike.com if you need any assistance.






