We hear your sentiment, 7436.
 

I'm sorry to hear that you're currently facing a challenging situation. Please know that I empathize with you and will do everything I can to support you. I understand that dealing with unexpected problems can be frustrating and overwhelming to deal with unexpected issues, but I'm here to help you navigate them and find a solution.

When creating a purchase order from an estimate in QuickBooks Online, the vendor information, like the item details, should ideally be prefilled to streamline the process. However, if you're experiencing an issue where the vendor information is not automatically populating, it could be due to your Products & Services setting not correctly set up in your QuickBooks Online account. 

To address this, let's ensure that we mark check the "I purchase this product/service from a vendor." So that the items will carry over to the purchase order.

Here's how:

1. Go to Sales, then choose Products & Services.
2. Select the Items you want to modify.
3. Under Purchasing information, mark check the I purchase this product/service from a vendor.
4. Enter the information needed, like the Cost and Preferred Vendor.
5. Click Save and close once finished.

Then, let's create an Estimate and copy it to the purchase order. Here's how:

1. Click the + New icon and select the Estimate.
2. Enter the information needed and the Product/Service.
3. Tap Save and close.

Once finished, open the Estimate transaction, and under the Create invoice drop-down, choose Copy to purchase order. Then, the data from the estimate will automatically prefill the information in the Item details.

However, if you didn't mark check the I purchase this product/service from a vendor from the Products and Service, you'll get a message. So we need to ensure we tick-check the "I purchase this product/service from a vendor."

To streamline your process, once a customer approves your estimate, you can easily copy it to a purchase order. For more information, please refer to this article: Copy an estimate to a purchase order in QuickBooks Online.

Please don't hesitate to reach out to me if you need any assistance or support. Together, we can overcome any obstacle and emerge more vital. The Community is always open 24/7 to help you. Have a great day!