Hi there Ecw427,
Thanks for reaching out about paying your suppliers. QuickBooks Online is a great tool able to help you keep track of sales and expenses so you can see the profit of your company. I can point you in the right direction for assistance with this.
Within QuickBooks Online itself, there isn't a way to pay suppliers electronically, so it would need to be done on your bank's website or through another service. I can see that this would be a feature that you'd like to see added in future updates of QuickBooks Online, and I encourage you to submit Feedback in the system by going to the Gear Icon and Feedback so the developers will know of your desire to see this as a feature.
If you have any other questions, feel free to reach out here.