The Amazon CS11 issue has been reported by a large number of users across a variety of Amazon services (Amazon Prime, Amazon Shoppers, etc.). The majority of reports of the problem concern Apple products like iPhones, iPads, and Macs, but there have also been reports of it occurring on other platforms like Android.

This occurs when the user launches the Amazon app or tries to access a specific feature, such as the Amazon Shopping app’s cart or accounts pages.

Amazon App CS11 Error iOS


Method 1: Make Sure You Have the Latest Version of The Amazon App

Incompatible app versions may result in error CS11 while using an older version of an Amazon app (such as Amazon Prime, Amazon Shopping, etc.). In this case, updating to the newest version of the Amazon app could fix the CS11 problem.

However, before you do that, you need make sure the Amazon app is supported by Amazon’s servers (as Amazon restricts usage of some Amazon apps on older phones or devices).

Step 1: Get the Amazon app by visiting the Apple App Store (like Amazon Prime).

Step 2: The next step is to go to the app’s Details page and check that the most recent version is installed. The App Store’s Updates section is another place to look for new versions of your favourite apps.

Step 3: After the update is complete, restart your iPhone and open the Amazon app to see if the CS11 error has been resolved.

Method 2: Reinstall The Amazon App

The Amazon app CS11 error may be due to a faulty installation, and reinstalling the programme may fix the issue.

Step 1: Launch the Apple App Store and search for the faulty Amazon app (like Amazon Shopping) (like Amazon Shopping).

Step 2: Now open the app’s Details page and click on Uninstall (or disable, if the software is preloaded) (or disable, if the app is preinstalled). On the iPhone’s home screen, you can also long-press the app’s icon to get the Uninstall menu.

Step 3: After the Amazon app has been removed from your iPhone, you should restart your device and then reinstall the app from the App Store.

Step 4: Now launch the malfunctioning Amazon app and check if it is clean of the CS11 error.

Method 3: Disable Network Firewall or Add Amazon Exceptions To The Firewall

Amazon CS11 may appear if the network’s firewall (such as PiHole) prevents the app from connecting to Amazon’s servers or needed domains. As a possible workaround, you might try turning off your network’s firewall or creating an exception for the necessary Amazon domains inside your firewall settings.

To illustrate, we’ll go over how to disable PiHole (a network firewall) on a Windows machine; however, you should follow the specific guidelines for your firewall and operating system.


If you disable or otherwise alter the network firewall, you do so at your own risk and the risk of all devices linked to it.

Step 1: Locate the Command Prompt by clicking Windows and then searching.

Step 2: Finally, select Run as Administrator from the context menu that appears after right-clicking the Command Prompt result.

Step 3: Currently, carry out these steps:


Step 4: Following activation of the PiHole interface, run the following commands in the command prompt:

pihole disable

Step 5: After turning off PiHole, you can potentially relaunch the afflicted Amazon app without encountering CS11. If that’s the case, you should exclude the domain from PiHole. These additional domains are typically required:

Step 6: Afterward, allow back PiHole by performing the following in an elevated command prompt:

pihole enable

If those options don’t work, you can try downloading the Amazon app for another platform, like as Android, or using a web browser (till the issue is reported to be resolved).