# Provisioning profile mismatch

### iOS build failure: Certificate does not match provisioning profile

If your app build is failing or your download is not working and you see the error:

{% hint style="danger" %}
“It seems your app build has encountered an issue. The certificate used to generate the uploaded Provisioning Profile does not match the uploaded Certificate.”
{% endhint %}

This means the provisioning profile was not created using the same distribution certificate that you uploaded in your dashboard.

This mismatch causes the iOS build to fail.

#### Why this build failure happens

1. The provisioning profile was created using a different certificate
   * The uploaded .p12 file does not match the certificate used in the provisioning profile
   * An older certificate was selected during profile generation
2. Multiple apps exist in the Apple Developer account
   * The wrong certificate may have been used
   * The wrong App ID may have been selected

#### How to fix this iOS build failure

1. [Create a new distribution certificate](/app/download/ios/certifications/iphone-distribution-certificate.md)
   * Log in to your [Apple Developer account](https://developer.apple.com/)
   * Go to Certificates, Identifiers & Profiles
   * Click the + button
   * Under Software, select Apple Distribution or iOS Distribution
   * [Upload your CSR file](/app/download/ios/certifications/certificate-signing-request.md)
   * Download the generated .cer file
   * Open it in Keychain Access
   * Export it as a .p12 file

{% hint style="warning" %}
Export the .p12 certificate without setting a password.
{% endhint %}

2. [Create a new provisioning profile](/app/download/ios/certifications/iphone-provisioning-profile.md)
   * Go to Profiles
   * Click the + button
   * Select App Store Connect under Distribution
   * Select the correct App ID
   * Select the newly created distribution certificate
   * Generate and download the provisioning profile

{% hint style="warning" %}
The provisioning profile must be created using the same distribution certificate you upload in your dashboard.
{% endhint %}

3. Upload the new files
   * Go to your [Download dashboard](https://app.appmysite.com/app/download)
   * Navigate to the iOS configuration section
   * Upload the new .p12 certificate
   * Upload the new provisioning profile
4. Rebuild your app
   * Go to the [iOS Build Configuration](https://app.appmysite.com/app/download/ios-build-settings)
   * Click Build app button to trigger a new build

{% hint style="success" %}
Once both files match correctly, your build failure should be resolved and the download should complete successfully.
{% endhint %}


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