Wanna know purchase entry

Welcome to the Community, @usermsarwar2310.

There are different ways to record your purchases in QuickBooks Online (QBO). And below are the following:

• Bills - are for payables (received services or items to be paid later).
• Cheques or Expenses - are for services or items paid on-the-spot.
• Purchase Orders - is a document you send to your supplier to state your intent to buy products or services.

To learn more about their difference and how to enter them in QBO, here are some articles you can read for more details: 

• What is the difference between bills, cheques, and expenses?
• Create purchase orders in QuickBooks Online.

As always, feel free to visit our QuickBooks Community help website if you need tips and related articles in the future.

Please touch base with me here for all of your QuickBooks needs, I'm always happy to help. Have a great day and take care always.