allow blank for enacted field
diff --git a/planetstack/core/models/plcorebase.py b/planetstack/core/models/plcorebase.py
index 3bceb08..e310b5e 100644
--- a/planetstack/core/models/plcorebase.py
+++ b/planetstack/core/models/plcorebase.py
@@ -157,7 +157,7 @@
     # from failing.
     created = models.DateTimeField(auto_now_add=True, default=timezone.now)
     updated = models.DateTimeField(auto_now=True, default=timezone.now)
-    enacted = models.DateTimeField(null=True, default=None)
+    enacted = models.DateTimeField(null=True, blank=True, default=None)
     backend_status = models.CharField(max_length=140,
                                       default="Provisioning in progress")
     deleted = models.BooleanField(default=False)