Purchase entry related issues

I'm here to help share information about your transaction, @support-iiiot-in.

Yes, purchase orders created do not have the payment option. These transactions are one of the non-posting entries which do not affect your accounts and reports. 

I'm adding this article to learn more about purchase orders: Create and Send Purchase Orders in QuickBooks Online.

However, you can convert these entries and use these details with the payment option. Use this article for the steps: Add Purchase Orders to vendor transactions in QuickBooks Online.

You may also read this reference that'll help understand the difference of the vendor transactions you can use: The Difference Between Bills, Cheques, and Expenses in QuickBooks Online.

If you have other concerns about the payments and purchases, please let me know. I'm just around ready to lend a helping hand. Take care always!