If you manage your promotions through the eBay "Promotion Manager" tool, complete the attribute below in Lengow:
- "isonpromotion": accepted value TRUE or FALSE.
If only some products are on sale, consider setting a condition on the attribute to not impact the other products with the value TRUE.
Lengow will not overwrite the prices of products that have the mention "TRUE" on the attribute "isonpromotion".
