7 Best Fixes: Amazon App CS11 Error

Many users reported seeing an Amazon app CS11 error issue for various Amazon applications (Amazon Prime, Amazon Shoppers, etc.). The issue has primarily been reported on ios devices such as iPhones and iPads, however, there have been reports of instances on other platforms such as Android.

The problem occurs when the user starts the Amazon app or attempts to conduct a certain operation, such as accessing the cart or accounts part of the Amazon Shopping app.

amazon app cs11 error

Previously, Amazon had an “error 503 service unavailable” issue, which cost the corporation around $34 million in sales in one hour. Jeff Bezos addressed the problem on social media. However, the problem was later resolved.

Similarly, the Amazon iOS app is not functional on iOS 15 and previous versions due to an Amazon CS11 problem. Many people on Twitter and Reddit reported that the issue only affects iPhones running iOS 15 beta versions.

Along with Amazon server failures, the following are the primary causes of Amazon app CS11 errors:

Outdated Amazon App: If the Amazon app is not updated to the most recent build, Amazon servers may deny the app access, resulting in the CS11 error.

Corrupt Amazon App Installation: If the Amazon app’s installation is corrupt, it can result in a CS11 error because certain app modules may not be accessible or executable.

Network Firewall Restrictions: If a network firewall (such as PiHole) prevents the Amazon app (such as Amazon Shoppers) from accessing its servers, the Amazon app error may occur.

What is the Amazon CS11 error in the app?

You probably have seen the Cs11 Error Amazon a few times when completing online shopping for your favorite item. “Sorry, something went wrong,” says a notice that appears regularly on the Amazon app screen. We’re working on a solution. (CS11).” The Cs 11 mistake Customers are not allowed to utilize the Amazon app to its full potential.

Users are unable to view account information, order history, new order placements, or other functions. This problem first appeared on August 10, 2021, however no definite remedy or explanation has yet been discovered. Amazon is working around the clock to fix the problem.

Amazon Error Code CS11 [How to Fix]

You may have come across the Amazon error cs11 when looking for a deal during Prime Day. A lovely dog photo with the error message “UH-OH” may have shown on your screen. On our end, something went wrong.

We can’t determine for sure what the major reason is. However, we can state that you’re seeing this error due to the high volume of traffic on the site, and the server from which you’re viewing the Prime Day bargains may be down.

Because the issue is on Amazon’s end, you’ll have to wait a bit for it to be resolved. Meanwhile, you can attempt the solutions listed below to resolve the Amazon error number cs11.

Solutions To Fix Amazon App CS11 Error

Here are the solutions to fix this error:

  1. Check Date and Time
  2. Check Permissions
  3. Update your App
  4. Reinstall the Amazon App
  5. Disable Network Firewall or Add Amazon Exceptions to the Firewall
  6. Force stop the amazon app
  7. Remove the app’s cache data

Let us go through each solution:

Solution 1: Check Date and Time

For Android

  1. Go to your device’s settings.
  2. Click General Management at the bottom of the page.
  3. Check the date and time by clicking on them and making sure they are right.
  4. You can also choose to use the 24-hour format or activate the Automatic date and time option.
date & time

For iOS

  1. Open your device’s settings app.
  2. Go to General, scroll down to Date & Time, and click it.
  3. Select Set Automatically from the drop-down menu.

Solution 2: Check Permissions

For Android

  1. Go to Settings and choose Apps.
  2. Open the Amazon app by scrolling down.
  3. Go to Permissions and make sure that all of the settings are enabled.
  4. If this is not the case, simply click Allow.

For iOS

  1. Go to your device’s settings.
  2. Find the Amazon App by scrolling down.
  3. Open it and make sure that all of the settings are turned on.

Solution 3: Update your App

If an Amazon app version (such as Amazon Prime, Amazon Shopping, etc.) is obsolete, it may cause an error CS11 because it is no longer compatible with Amazon servers.

The CS11 problem may be resolved by upgrading the Amazon app to the latest version. However, before you do so, double-check that the Amazon app is supported by Amazon servers (as Amazon restricts usage of some Amazon apps on older phones or devices).

  1. Search for the Amazon app on the Apple App Store (like Amazon Prime).
  2. Then go to the app’s Details page and check sure it’s updated to the most recent build. You may also check for app updates in the App Store’s Updates tab.
  3. Restart your iPhone when the update is complete, and then check to see whether the CS11 problem has been resolved in the Amazon app.

Solution 4: Reinstall the Amazon App

The Amazon app CS11 error might be caused by a faulty Amazon app installation, and reinstalling the Amazon app may remedy the problem.

uninstall amazon
  1. Search for the malfunctioning Amazon app in the Apple App Store (like Amazon Shopping).
  2. Now go to the Details tab of the program and select Uninstall (or disable, if the app is preinstalled). You may also pick Uninstall by long-pressing the app’s icon on the iPhone’s home screen.
  3. Restart the iPhone after uninstalling the Amazon app, and then reinstall the Amazon app from the App Store.
  4. Now open the faulty Amazon app and see if the CS11 issue is gone.

Solution 5: Disable Network Firewall or Add Amazon Exceptions to the Firewall

If the network’s firewall (like PiHole) is preventing the app’s access to its servers or needed domains, you may see the Amazon app CS11. Disabling the network firewall or adding an exception for the needed Amazon domains to the network firewall may be enough to address the problem in this case.

For clarity, we’ll go over how to disable PiHole (a form of network firewall) on a Windows PC; you may use the specific instructions provided by the network firewall and the device’s operating system.

Disabling or modifying the network firewall’s settings may expose the network and its linked devices to attacks, therefore proceeding at your own risk.

  1. Search for Command Prompt under Windows.
  2. Now, right-click on the Command Prompt result and choose Run as Administrator from the mini-menu.
  3. Now go ahead and do the following: pihole
  4. Execute the following commands at the Command Prompt once the PiHole interface has been launched: pihole disable
  5. Launch the problematic Amazon app once PiHole has been removed, and it should be free of CS11. If that’s the case, add the Amazon domains to PiHole’s exclusions list. The following domains are usually necessary to be added:  aax-us-east.amazon-adsystem.com   fls-na.amazon.com  amazon-adsystem.com
  6. After that, re-enable PiHole by running the following command from an elevated command prompt: pihole enable

Solution 6: Force stop the amazon app

If you have the Amazon app installed on your iPhone or iPad. Follow the instructions to force-close your Amazon app.

  1. Navigate to Settings from the menu screen on your device.
  2. After that, go to the applications menu and click Manage app.
  3. Select Amazon now and press the force stop button.

Solution 7: Remove the app’s cache data

  1. Navigate to Settings from the menu screen on your device.
  2. After that, go to the applications menu and click Manage app.
  3. Now choose Amazon, and you’ll see the option to “Clear data.”
  4. When you click it, two more options will appear: Clear data and Clear cache.
app's cache data
cache data


If none of the preceding methods worked, you may try the Amazon app in your browser or another platform app, such as the Amazon app for Android (till the issue is reported to be resolved). Because the mistake is on Amazon’s end, all you have to do now is wait. So, we hope the information in this post has assisted you in resolving the Amazon problem number cs11.