You've come to the right place, aryeh.

I have just the clarification you're looking for.

Once you've turned on the Projects feature, you'll need to set up a project first before you can add it to your income and expense transactions. Here's how:

1. Click Projects in the left navigation menu.
2. Select Add your first project.
3. Enter the Project name.
4. From the Customer drop-down menu, choose the correct customer.
   - If necessary, you can also add Notes for this project.
5. Click Save.

Now that you've set up a project, let me walk you through the steps on how to apply it in your transactions:

For Income Transactions

1. Click the Plus (+) icon.
2. Select Invoice. You can also use Sales Receipt.
3. Choose the project from the Customer drop-down menu.
4. Enter the necessary details for the invoice.
5. Click Save and close.

For Expense Transactions

1. Click the Plus (+) icon.
2. Select Bill/Expense.
3. Enter the Vendor, Bill Date, Due date, and Bill no.
4. Fill in the necessary details in the Category details or Item details section.
   - Make sure to enter the correct project in the Customer/Project field.
5. Click Save and close.

For additional insight about this, I recommend following this article: Projects: Set up and Use

That should do it. With these resources, I'm confident that you'll be able to input the project in your transactions like a pro in no time!

I hope this response finds you with a smile today. Let me know if there's anything else I can do for you, I want to make sure you're taken care of. Thanks for reaching out, wishing you and your business the best.