diff --git a/abp_io/AbpIoLocalization/AbpIoLocalization/Base/Localization/Resources/en.json b/abp_io/AbpIoLocalization/AbpIoLocalization/Base/Localization/Resources/en.json
index f73d317fad..85378bb78e 100644
--- a/abp_io/AbpIoLocalization/AbpIoLocalization/Base/Localization/Resources/en.json
+++ b/abp_io/AbpIoLocalization/AbpIoLocalization/Base/Localization/Resources/en.json
@@ -26,6 +26,7 @@
     "Volo.AbpIo.Domain:030009": "User not found!",
     "Volo.AbpIo.Domain:030010": "To purchase the trial license, you first need to activate your trial license!",
     "Volo.AbpIo.Domain:030011": "You cannot delete a trial license when it is purchased!",
+    "Volo.AbpIo.Domain:030012": "A user is entitled to have only 1 free trial period. You already used your trial license.",
     "Volo.AbpIo.Domain:070000": "The organization name can only contain latin letters, numbers, dots and hyphens!",
     "Volo.AbpIo.Domain:070001": "The company name can only contain latin letters, numbers, dots, space and hyphens!",
     "WantToLearn?": "Want to learn?",