Consulting is a very broad term. It benefits both the consultant and the client if both know the duties of an consultant.
The list below is all the things a consultant is supposed to do. Here is the link to an article to learn more. https://hbr.org/1982/09/consulting-is-more-than-giving-advice
1. Providing information to a client.
2. Solving a client’s problems.
3. Making a diagnosis, which may necessitate redefinition of the problem.
4. Making recommendations based on the diagnosis.
5. Assisting with implementation of recommended solutions.
6. Building a consensus and commitment around corrective action.
7. Facilitating client learning—that is, teaching clients how to resolve similar problems in the future.
8. Permanently improving organizational effectiveness.