diff --git a/assets/less/cds-rdm/globals/site.overrides b/assets/less/cds-rdm/globals/site.overrides
index b7c3a42..bfcb7ff 100644
--- a/assets/less/cds-rdm/globals/site.overrides
+++ b/assets/less/cds-rdm/globals/site.overrides
@@ -90,3 +90,11 @@
     opacity:1;
   }
 }
+
+.ui.disabled.input, .ui.input:not(.disabled) input[disabled] {
+  opacity: 1 !important;
+}
+
+.ui.form .flashed.message {
+  z-index: 0 !important;
+}
\ No newline at end of file
diff --git a/invenio.cfg b/invenio.cfg
index 884c6a2..2d4bf59 100644
--- a/invenio.cfg
+++ b/invenio.cfg
@@ -182,7 +182,7 @@ APP_RDM_DEPOSIT_FORM_AUTOCOMPLETE_NAMES = 'search'  # "search_only" or "off"
 # Invenio-RDM-Records
 # ===================
 # See https://inveniordm.docs.cern.ch/customize/dois/
-DATACITE_ENABLED = False
+DATACITE_ENABLED = True
 DATACITE_USERNAME = ""
 DATACITE_PASSWORD = ""
 DATACITE_PREFIX = ""
@@ -500,8 +500,7 @@ RDM_RECORDS_PERSONORG_SCHEMES = {**RDM_RECORDS_PERSONORG_SCHEMES,
 ### Do not require DOIs for record and parent
 RDM_PERSISTENT_IDENTIFIERS["doi"]["required"] = False
 RDM_PARENT_PERSISTENT_IDENTIFIERS["doi"]["required"] = False
-
-
+RDM_PERSISTENT_IDENTIFIERS["doi"]["ui"]["default_selected"] = "not_needed"  # "yes", "no" or "not_needed"
 # Invenio-Preservation-Sync
 # =========================