Setting sale prices via Bold Discounts, so items already on sale can’t be double dipped.
All products that are not on sale need to be in the Omnisend Collection. Tag = GrillStore, Compare at Price is empty. On the product page compare at price is faded light 0.00 (empty). Omnisend is an Auto Collection, so control it with the Compare at price Condition.
On product page delete 0.00 and save to fade out
For a partial sale product, not all variants on sale or available (sold out), then those variants not on sale or available need a 0.00 (black) on compare at price
Put items on sale in Bold. Bold will move Price to Compare at price. When off on sale in Bold, confirm compare at price is faded 0.00 and not actual (black) 0.00.