Data Modeling
Give your data structure with objects, fields, and relationships.
Topic-1
Understand Custom & Standard Objects
Salesforce consists of different types of objects like standard objects, custom objects, etc.
Account, Contact, Lead, and Opportunity are all standard objects.
Custom objects are objects that we create to store information that’s specific to our company or industry.
Create a Custom Object 
- First, create a new trailhead playground.
- After
     creating the playground, click Launch.
- Click
     the gear icon at
     the top right corner of the page and launch setup.
- Click
     the Object Manager tab.
- Click
     Create | Custom Object in the top-right corner.
- For
     Label, enter Offer. Notice that the Object Name and Record Name fields
     auto-fill.
- For
     Plural Label, enter Offers.
- Data
     Type: Auto Number
- Display
     Format: OF-{0000}
- Starting
     Number: 1
- Click
     Save.
- Create a custom currency field on the Offer object
- Click Fields & Relationships
- Data Type: Currency
- Field Label: Offer Amount
- Field Name: Offer_Amount
- Click Next, Next, and Save.
- Create a custom date field on the Offer object
- Data Type: Date
- Field
      Label: Target Close Date
- Field Name: Target_Close_Date
- Click Next, Next, and Save.
- Check
     Challenge in Trailhead webpage to earn 500 points.