Error: Step 3 script `Fetch signing files` exited with status code 1. You already have a current Distribution certificate or a pending certificate request.

What does this error mean?

During deployment, Codemagic tried to create distribution certificates in your Apple Console. This failed as you have reached the maximum number of allowed certificates in the Apple Console.

Full error message

Build failed :|
Step 3 script `Fetch signing files` exited with status code 1

Returned 409: There is a problem with the request entity - You already have a current Distribution certificate or a pending certificate request.

How to resolve this issue?

You need to delete a few distribution certificates so that the build can go through.

Steps to delete:

Open the Apple Developer Console in App Store Connect
Select 'Keychain>Login' , then 'Category>My Certificates
Locate and delete your developer, distribution. and server certificates (if applicable)

Note: these certificates are used for signing the application and will be created on-demand during the build.