diff --git a/src/agenda_culturel/models/constants.py b/src/agenda_culturel/models/constants.py
new file mode 100644
index 0000000..52904bb
--- /dev/null
+++ b/src/agenda_culturel/models/constants.py
@@ -0,0 +1,26 @@
+from django.utils.translation import gettext as _
+from enum import IntEnum
+
+
+TITLE_ISSUE_WARNING = _("Warning")
+TITLE_ISSUE_PREFIX = " - " + TITLE_ISSUE_WARNING + ": "
+
+TITLE_ISSUE_DATE_IMPORTATION = TITLE_ISSUE_PREFIX + _(
+    "the date has not been imported correctly."
+)
+
+
+TITLE_ISSUE_TIME_IMPORTATION = TITLE_ISSUE_PREFIX + _(
+    "the time has not been imported correctly."
+)
+
+
+class PUBLICATION_ISSUE(IntEnum):
+    DATE_IMPORTATION_IN_TITLE = 1
+    TIME_IMPORTATION_IN_TITLE = 2
+
+    def __str__(self):
+        return {
+            PUBLICATION_ISSUE.DATE_IMPORTATION_IN_TITLE: _("date import problem"),
+            PUBLICATION_ISSUE.TIME_IMPORTATION_IN_TITLE: _("time import problem"),
+        }[self.value]