How to set up a custom workflow in SharePoint?

1. Open a browser window, and navigate to the SharePoint Admin Center.
2. Sign in using your Office 365 credentials.
3. Under the Quick Launch menu, select Workflows.
4. Select + Create a workflow.
5. Choose from the list of available options, or click the Create from existing template option and select the desired template.
6. Choose the destination SharePoint list or library.
7. Type a name for your custom workflow, and add an appropriate description.
8. Click the + Create a new stage button, and add the desired action for the new stage.
9. Once all the desired stages have been added, click the Save button, to save the workflow.