In Git, you can configure the credential manager using the git config command. The purpose of a credential manager is to securely store and manage authentication credentials, such as usernames and passwords. To configure the credential manager, you can use the following git config command [1]:

git config --global credential.helper <helper>

Replace `<helper>` with the specific credential helper you want to use. The choice of credential helper depends on your operating system and personal preferences. Some common credential helpers include:
1. Replace `<helper>` with the specific credential helper you want to use. The choice of credential helper depends on your operating system and personal preferences. Some common credential helpers include:

    git config --global credential.helper cache

2. Store: This helper stores your credentials in plaintext on disk. It's not the most secure option but can be useful for development environments. To configure the store helper, you can use:

    git config --global credential.helper store

3. Manager for your OS: There are platform-specific credential managers for different operating systems. For example, on Windows, you can use the Windows Credential Manager, and on macOS, you can use the macOS Keychain. These are often set up by default and are more secure than the store helper. For example, on Windows, you can use the Windows Credential Manager with:

    git config --global credential.helper manager

The purpose of these credential managers is to improve the security and convenience of interacting with Git repositories by securely storing and providing your authentication credentials when needed. This way, you don't have to keep entering your username and password for every Git operation, such as pushing or pulling from a remote repository, making the Git workflow smoother and more secure.