Having issues when trying to enter an Expense. On the dropdown%2C I cannot see my product%2Fservice list

Thanks for becoming part of the Community, Maril72. I appreciate your detailed information.

When creating an expense, your PRODUCT/SERVICE drop-down field column can be found in the Item Details area.

Here's how it's located and used:
 

1. While entering an expense, click ▼ Item details.
2. Move your cursor over the field for your PRODUCT/SERVICE column. You'll see a Drop-Down Arrow (▼) displayed.
3. Click the Drop-Down Arrow (▼).
4. Choose a product or service. You can do this for each necessary line item.
5. Enter any other necessary information for your expense.
6. Select Save and close.
   
   

I've also included a detailed resource about working with expenses which may come in handy moving forward: Enter & manage expenses

Please feel welcome to send a reply if there's any additional questions. Have a wonderful Friday!