Custom fields are a powerful tool to capture the unique data needs of any organization. When creating a custom field, you elect where you want it to appear as well as who you want to see it. To create a custom field, follow the steps below.
Navigate to "Setup"
In order to make changes or additions to an object or field, you must first select the gear icon in the upper right corner of your screen and then "Setup".
Select the object on which you want to create the new field
First, select the 'Object Manager' tab. Next, type the desired object into the 'Quick Find' box. Then select the link to the object itself.
Creating the Field
Select the 'Fields & Relationships' tab and then the 'New' button.
Choose the type of field you want to create and click Next.
Enter a field label as well as any description, help text, or default value as appropriate. Click Next.
Specify the field’s access settings for each profile, and click Next.
Choose the page layouts that will display the field and click Next.
Click Save to finish or Save & New to create more custom fields on the same object.
