I am trying to add inventory and vendor information for my business..can anyone give me a starting point?

You should migrate to QBO Online Plus or Advanced to manage inventories. 

https:// quickbooks.grsm.io/US

https:// quickbooks.grsm.io/us-promo

Otherwise, you may use QBO Simple Start or Essentials and integrate it with an inventory management app.

@pachecofarm2016- 

Hi,

You need to perform two tasks:

1. Setting up inventory in QB.
2. Creation of purchase bill

Inventory setup can be done by entering basic info such as inventory name, cost, type, category and initial quantity. 

Alternatively, you can create a purchase bill and create inventory directly from there. 

While creating a purchase bill, you need to create a supplier first. 

There, you can add all supplier info.

Let me know if this helps.

Tarannum