Custom object 

1. are custom database tables that allow you to store information unique to your organization.

2. There are two type of objects in salesforce. They are.

1. Standard Objects : The objects provided by salesforce.com is called standard objects. examples of standard objects are accounts, contacts, opportunities, Leads, products, campaigns,cases, users, contracts,Report and dashboards etc…

2. Custom Object: The objects created by us are called custom objects. Custom objects store information that is unique and important to your organization. Custom objects are the heart of any application. Custom objects provide a structure for sharing data.

Custom objects have properties such as

– Custom fields

– Relationship to other object

– Page Layouts

– A custom user interface tab

Allow reports: If we check this check box then only these objects are available to create reports.

Allow Activities: If we check this chis check box then we are able to create activities on this object.

Track Field History: If we check this check box then only we are to track fields. We can track up to 20 fields for single object.