Value for Category was either blank or invalid
This error occurs when the "category" field in NetSuite is a required field for a vendor.
Make sure the category field option is not mandatory in your default vendor form in Netsuite. You can find this in NetSuite:
- Customization > Forms > Entry forms > locate the preferred Vendor Entry form and click Edit
- Click on the Fields tab, then click on the Information sub-tab and uncheck the box in the Mandatory column for Category
If the mandatory field must be enabled, create vendors in NetSuite and let them sync into Bill.com.