Creating a label in Gmail helps to organize emails. Labels function as folders and multiple labels can be assigned to one message. To create a label follow the instructions below.
Select the messages you want to label.
Click on the Label Iconbeside the More icon located at the top of the page. A context menu will appear.
Select a preexisting label and click on Apply, or create a new one.
Create a new label
Follow the steps below to create a new label.
Follow Step 1. and Step 2. of the section above on Create a label.
On the context menu click on Create new. A New Label menu will pop-up.
Insert the title of the new label.
If you wish to nest the new label as a sub label to a preexisting one, check the box against Nest label under and select a parent label.
Click on Create. The new label should now be created.