To sync all product data properly, you need to ensure that Zoho understands your WooCommerce Tax configuration. Its important that you have a standard tax rate, if you are not using tax, then ensure the standard rate is 0%.

Zoho Preferences > General
Do you give discounts?
- I don’t give discounts
- At line item level > always choose this
- At transaction level
Do you sell your items at rates inclusive of Tax ?
- Tax inclusive
- Tax exclusive
- Tax inclusive or exclusive > always choose this