An account manager is responsible for building strong and lasting relationships with clients in order to maintain their satisfaction and grow their business. The job involves working closely with clients to understand their needs, creating strategic plans to achieve their goals, and ensuring that they receive excellent service from the company.

Some of the key responsibilities of an account manager include:

1. Building and maintaining strong relationships with clients: The account manager should develop a deep understanding of the client's needs, goals, and preferences. They should be the primary point of contact for the client and be able to build strong relationships based on trust and mutual respect.

2. Developing strategic plans: The account manager should be able to develop strategic plans that address the client's needs and goals. This could involve identifying new business opportunities, providing solutions to problems, or creating new marketing campaigns.

3. Managing client expectations: The account manager should be able to manage the client's expectations by setting realistic goals and communicating effectively about progress and outcomes.

4. Monitoring and analyzing data: The account manager should monitor and analyze data related to the client's business to ensure that their goals are being met and to identify areas where improvements can be made.

5. Coordinating with internal teams: The account manager should coordinate with internal teams such as sales, marketing, and product development to ensure that the client's needs are being met.

6. Handling client concerns: The account manager should be able to handle client concerns and complaints in a professional and timely manner.

7. Upselling and cross-selling: The account manager should identify opportunities for upselling and cross-selling to increase revenue and profitability.

Overall, an account manager is responsible for ensuring that the client is satisfied with the company's products or services and that their business is growing. Strong communication and relationship-building skills, as well as strategic planning and analytical skills, are essential for success in this role.