Can I set up multiple levels of approval?

Yes, you can set up multiple levels of approval using Custom Approval. Here’s how:

Click Admin View on the left sidebar.
Go to Settings on the left sidebar.
(OR)
Click Settings in the top right corner of the page.
Go to Modules under Customization.
Click the module for which you want to enable custom approvals and go to the Approvals tab.
Select Custom Approval.
Click + New Custom Approval.
Enter an Approval Name.
Provide the Description if necessary.
You can configure the criteria based on which the approval flow will be triggered.
Next, select any of the following to configure an approval flow:

Submits To: The default approver of the user. It follows the reporting hierarchy in your organization.

Choose an approver manually: Select an approver manually from the existing users.

Project Head: Select this option if a particular report is associated with a project and needs the approval of the project head.

Project Heads of Expenses: The Project Heads of all the expenses in a report or a trip.

Project Heads of Purchase Request Items: The Project Heads associated with the line items of the purchase request.

Department Head of the logged-in user: The head of the department to which the owner of the report belongs.

Department Head: The approver will be the department head of the department you choose.

Designation-Hierarchy: The approver will be the first user mapped in the Submits To field hierarchy of the report owner who is assigned in the mentioned designation.

Choose a Lookup Field: The approver will be the user selected in the lookup custom field you have chosen.

You can remove any approval level by clicking the - icon in the right corner of the flow.
Click Save.