Although we don't have a way to send a link to have vendors set up their own bank information, you can do it on their behalf, @Harbortowne. Here's what to do:
- Log in to your QuickBooks Online account.
- Choose Expenses on the left pane.
- Select the Pay Bills Online button.
- Under the Manage Vendors tab, find the vendor you want to update the bank account for.
- Select Set up bank transfers.
- Enter the vendor's bank account info and then select Next.
- Enter the following required fields.
- Click Save.
If you want to read more on this, check out this article: Add a vendor bank account.
Please reach out with any follow-up questions you may have on online bill pay or anything else within QuickBooks. Have a great rest of your day!