If your store supports multiple languages, you can translate alert messages for display in each language. For languages without a translation set, the default message entered in the rule will be displayed.
Open the selling period rule you want to translate
Select "Localize" from the top-right menu
Select the language to translate from the dropdown (languages supported by your store are listed)
Enter the translated text in the "Before selling period" and "After selling period" alert message fields
Save
You can translate into the languages added in Shopify (excluding the default/primary language)
Translation data must be configured for each rule individually
When a rule is duplicated, the translation data from the original rule is not copied. Please note this carefully.