diff --git a/invenio_communities/assets/semantic-ui/js/invenio_communities/administration/components/RestoreConfirmation.js b/invenio_communities/assets/semantic-ui/js/invenio_communities/administration/components/RestoreConfirmation.js
index 9fbd6151f..d2a335e93 100644
--- a/invenio_communities/assets/semantic-ui/js/invenio_communities/administration/components/RestoreConfirmation.js
+++ b/invenio_communities/assets/semantic-ui/js/invenio_communities/administration/components/RestoreConfirmation.js
@@ -1,6 +1,7 @@
 /*
  * // This file is part of Invenio-Communities
  * // Copyright (C) 2023-2024 CERN.
+ * // Copyright (C) 2024 KTH Royal Institute of Technology.
  * //
  * // Invenio-App-Rdm is free software; you can redistribute it and/or modify it
  * // under the terms of the MIT License; see LICENSE file for more details.
@@ -85,7 +86,7 @@ export class RestoreConfirmation extends Component {
         </Modal.Content>
         <Modal.Actions>
           <Button onClick={this.handleModalClose} floated="left">
-            Close
+            {i18next.t("Close")}
           </Button>
           <Button
             size="small"
diff --git a/invenio_communities/assets/semantic-ui/js/invenio_communities/administration/components/TombstoneForm.js b/invenio_communities/assets/semantic-ui/js/invenio_communities/administration/components/TombstoneForm.js
index 43f30db19..9ebfb65e7 100644
--- a/invenio_communities/assets/semantic-ui/js/invenio_communities/administration/components/TombstoneForm.js
+++ b/invenio_communities/assets/semantic-ui/js/invenio_communities/administration/components/TombstoneForm.js
@@ -1,6 +1,7 @@
 /*
  * // This file is part of Invenio-App-Rdm
  * // Copyright (C) 2023-2024 CERN.
+ * // Copyright (C) 2024 KTH Royal Institute of Technology.
  * //
  * // Invenio-App-Rdm is free software; you can redistribute it and/or modify it
  * // under the terms of the MIT License; see LICENSE file for more details.
@@ -129,7 +130,7 @@ export default class TombstoneForm extends Component {
                         this.handleVisibility(setFieldValue, true)
                       }
                     >
-                      Public
+                      {i18next.t("Public")}
                     </Button>
                     <Button
                       active={!values.is_visible}
@@ -139,7 +140,7 @@ export default class TombstoneForm extends Component {
                         this.handleVisibility(setFieldValue, false)
                       }
                     >
-                      Hidden
+                      {i18next.t("Hidden")}
                     </Button>
                   </Button.Group>
                   {!values.is_visible && isPublic && (
@@ -178,7 +179,7 @@ export default class TombstoneForm extends Component {
               </Modal.Content>
               <Modal.Actions>
                 <Button onClick={this.handleModalClose} floated="left">
-                  Close
+                  {i18next.t("Close")}
                 </Button>
                 <Button
                   size="small"
diff --git a/invenio_communities/assets/semantic-ui/js/invenio_communities/community/communitiesItems/CommunityItemComputer.js b/invenio_communities/assets/semantic-ui/js/invenio_communities/community/communitiesItems/CommunityItemComputer.js
index b11596c01..2226a319e 100644
--- a/invenio_communities/assets/semantic-ui/js/invenio_communities/community/communitiesItems/CommunityItemComputer.js
+++ b/invenio_communities/assets/semantic-ui/js/invenio_communities/community/communitiesItems/CommunityItemComputer.js
@@ -1,5 +1,6 @@
 // This file is part of InvenioRDM
 // Copyright (C) 2022-2024 CERN.
+// Copyright (C) 2024 KTH Royal Institute of Technology.
 //
 // Invenio App RDM is free software; you can redistribute it and/or modify it
 // under the terms of the MIT License; see LICENSE file for more details.
@@ -45,7 +46,7 @@ export const CommunityItemComputer = ({ result }) => {
               {result.parent && (
                 <p className="ml-5 display-inline-block">
                   <Popup
-                    content="Verified community"
+                    content={i18next.t("Verified community")}
                     trigger={
                       <Icon size="small" color="green" name="check circle outline" />
                     }
@@ -61,7 +62,7 @@ export const CommunityItemComputer = ({ result }) => {
             )}
             {result.parent && (
               <div className="sub header">
-                Part of{" "}
+                {i18next.t("Part of")}{" "}
                 <a href={`/communities/${result.parent.slug}`}>
                   {result.parent.metadata.title}
                 </a>
diff --git a/invenio_communities/assets/semantic-ui/js/invenio_communities/community/communitiesItems/CommunityItemMobile.js b/invenio_communities/assets/semantic-ui/js/invenio_communities/community/communitiesItems/CommunityItemMobile.js
index 8c2400710..93530ff30 100644
--- a/invenio_communities/assets/semantic-ui/js/invenio_communities/community/communitiesItems/CommunityItemMobile.js
+++ b/invenio_communities/assets/semantic-ui/js/invenio_communities/community/communitiesItems/CommunityItemMobile.js
@@ -1,5 +1,6 @@
 // This file is part of InvenioRDM
 // Copyright (C) 2022-2024 CERN.
+// Copyright (C) 2024 KTH Royal Institute of Technology.
 //
 // Invenio App RDM is free software; you can redistribute it and/or modify it
 // under the terms of the MIT License; see LICENSE file for more details.
@@ -91,7 +92,7 @@ export const CommunityItemMobile = ({ result, index }) => {
       )}
       {result.parent && (
         <div className="pl-0 sub header">
-          Part of{" "}
+          {i18next.t("Part of")}{" "}
           <a href={`/communities/${result.parent.slug}`}>
             {result.parent.metadata.title}
           </a>
diff --git a/invenio_communities/assets/semantic-ui/js/invenio_communities/organizations/OrganizationsList.js b/invenio_communities/assets/semantic-ui/js/invenio_communities/organizations/OrganizationsList.js
index 042bcc2b8..0cdb8c375 100644
--- a/invenio_communities/assets/semantic-ui/js/invenio_communities/organizations/OrganizationsList.js
+++ b/invenio_communities/assets/semantic-ui/js/invenio_communities/organizations/OrganizationsList.js
@@ -1,6 +1,14 @@
+// This file is part of InvenioRDM
+// Copyright (C) 2024 CERN.
+// Copyright (C) 2024 KTH Royal Institute of Technology.
+//
+// Invenio App RDM is free software; you can redistribute it and/or modify it
+// under the terms of the MIT License; see LICENSE file for more details.
+
 import React from "react";
 import PropTypes from "prop-types";
 import { Popup } from "semantic-ui-react";
+import { i18next } from "@translations/invenio_app_rdm/i18next";
 
 const OrganizationsList = ({ organizations }) => {
   const handleClick = (e) => {
@@ -35,11 +43,13 @@ const OrganizationsList = ({ organizations }) => {
           </span>
           {organizations.length > 1 && (
             <span className="ml-1">
-              &nbsp;and&nbsp;
+              &nbsp;{i18next.t("and")}&nbsp;
               <Popup
                 trigger={
                   <a href="#!" onClick={handleClick}>
-                    {`${organizations.length - 1} more organizations`}
+                    {i18next.t("{{count}} more organizations", {
+                      count: organizations.length - 1,
+                    })}
                   </a>
                 }
                 size="small"
diff --git a/invenio_communities/communities/schema.py b/invenio_communities/communities/schema.py
index d07e28b8e..056f5fb11 100644
--- a/invenio_communities/communities/schema.py
+++ b/invenio_communities/communities/schema.py
@@ -3,6 +3,7 @@
 # This file is part of Invenio.
 # Copyright (C) 2016-2024 CERN.
 # Copyright (C) 2023 Graz University of Technology.
+# Copyright (C) 2024 KTH Royal Institute of Technology.
 #
 # Invenio is free software; you can redistribute it and/or modify it
 # under the terms of the MIT License; see LICENSE file for more details.
@@ -333,8 +334,8 @@ class CommunityFeaturedSchema(Schema):
     id = fields.Int(dump_only=True)
     start_date = fields.DateTime(
         required=True,
-        title="start date",
-        description="Accepted format: YYYY-MM-DD hh:mm",
+        title=_("start date"),
+        description=_("Accepted format: YYYY-MM-DD hh:mm"),
         placeholder="YYYY-MM-DD hh:mm",
     )
 
diff --git a/invenio_communities/communities/services/components.py b/invenio_communities/communities/services/components.py
index 4c5bdebba..d76c73b53 100644
--- a/invenio_communities/communities/services/components.py
+++ b/invenio_communities/communities/services/components.py
@@ -4,6 +4,7 @@
 # Copyright (C) 2016-2024 CERN.
 # Copyright (C) 2022 Northwestern University.
 # Copyright (C) 2022-2023 Graz University of Technology.
+# Copyright (C) 2024 KTH Royal Institute of Technology.
 #
 # Invenio is free software; you can redistribute it and/or modify it
 # under the terms of the MIT License; see LICENSE file for more details.
@@ -160,7 +161,7 @@ def _create_set_spec(self, community_slug):
 
     def _create_set_description(self, community_title):
         # NOTE: Does not require translation since this description can also be changed by an admin
-        return "Records belonging to the community '{title}'".format(
+        return _("Records belonging to the community '{title}'").format(
             title=community_title
         )
 
@@ -173,7 +174,7 @@ def _create_set_from_community(self, record):
         community_set.system_created = True
         community_set.description = self._create_set_description(community_title)
         community_set.spec = self._create_set_spec(community_slug)
-        community_set.search_pattern = "parent.communities.ids:{id}".format(
+        community_set.search_pattern = _("parent.communities.ids:{id}").format(
             id=record.id
         )
 
@@ -315,21 +316,23 @@ def _validate_and_get_parent(self, parent_data, child):
         try:
             parent = self.service.record_cls.pid.resolve(parent_data["id"])
             if not parent.children.allow:
-                raise ValidationError("Assigned parent is not allowed to be a parent.")
+                raise ValidationError(
+                    _("Assigned parent is not allowed to be a parent.")
+                )
             elif child.children.allow:
                 raise ValidationError(
-                    "Community allowed to be a parent can't be a child."
+                    _("Community allowed to be a parent can't be a child.")
                 )
             elif parent.parent:
                 raise ValidationError(
-                    "Assigned parent community cannot also have a parent."
+                    _("Assigned parent community cannot also have a parent.")
                 )
             elif child.id == parent.id:
                 raise ValidationError(
-                    "Assigned parent community cannot be the same as child."
+                    _("Assigned parent community cannot be the same as child.")
                 )
         except PIDDoesNotExistError:
-            raise ValidationError("Assigned parent community does not exist.")
+            raise ValidationError(_("Assigned parent community does not exist."))
         return parent
 
     def create(self, identity, data=None, record=None, **kwargs):
diff --git a/invenio_communities/communities/services/config.py b/invenio_communities/communities/services/config.py
index 208dc8027..8cf88c782 100644
--- a/invenio_communities/communities/services/config.py
+++ b/invenio_communities/communities/services/config.py
@@ -19,7 +19,9 @@
     SearchOptionsMixin,
 )
 from invenio_records_resources.services.files.links import FileLink
-from invenio_records_resources.services.records.config import RecordServiceConfig
+from invenio_records_resources.services.records.config import (
+    RecordServiceConfig,
+)
 from invenio_records_resources.services.records.config import (
     SearchOptions as SearchOptionsBase,
 )
diff --git a/invenio_communities/communities/services/service.py b/invenio_communities/communities/services/service.py
index 502d6c0e0..4bd65f678 100644
--- a/invenio_communities/communities/services/service.py
+++ b/invenio_communities/communities/services/service.py
@@ -5,6 +5,7 @@
 # Copyright (C) 2021-2022 Northwestern University.
 # Copyright (C)      2022 Graz University of Technology.
 # Copyright (C) 2024 Graz University of Technology.
+# Copyright (C) 2024 KTH Royal Institute of Technology.
 #
 # Invenio is free software; you can redistribute it and/or modify it
 # under the terms of the MIT License; see LICENSE file for more details.
@@ -13,6 +14,7 @@
 
 from flask import current_app
 from invenio_cache.decorators import cached_with_expiration
+from invenio_i18n import lazy_gettext as _
 from invenio_records_resources.proxies import current_service_registry
 from invenio_records_resources.services.base import LinksTemplate
 from invenio_records_resources.services.records import (
@@ -204,7 +206,7 @@ def rename(
 
         if "slug" not in data:
             raise ValidationError(
-                "Missing data for required field.",
+                _("Missing data for required field."),
                 field_name="slug",
             )
 
diff --git a/invenio_communities/members/resources/config.py b/invenio_communities/members/resources/config.py
index 3adf88fb3..e3e845f60 100644
--- a/invenio_communities/members/resources/config.py
+++ b/invenio_communities/members/resources/config.py
@@ -4,6 +4,7 @@
 # Copyright (C) 2022-2024 Northwestern University.
 # Copyright (C) 2022 CERN.
 # Copyright (C) 2023 TU Wien.
+# Copyright (C) 2024 KTH Royal Institute of Technology.
 #
 # Invenio-Communities is free software; you can redistribute it and/or modify
 # it under the terms of the MIT License; see LICENSE file for more details.
@@ -40,13 +41,13 @@ class MemberResourceConfig(RecordResourceConfig):
         InvalidMemberError: create_error_handler(
             HTTPJSONException(
                 code=400,
-                description="Invalid member specified.",
+                description=_("Invalid member specified."),
             )
         ),
         AlreadyMemberError: create_error_handler(
             HTTPJSONException(
                 code=400,
-                description="A member was already added or invited.",
+                description=_("A member was already added or invited."),
             )
         ),
         CommunityDeletedError: create_error_handler(
diff --git a/invenio_communities/members/services/components.py b/invenio_communities/members/services/components.py
index f4c133b4d..bf88325d8 100644
--- a/invenio_communities/members/services/components.py
+++ b/invenio_communities/members/services/components.py
@@ -2,6 +2,7 @@
 #
 # This file is part of Invenio.
 # Copyright (C) 2022 Graz University of Technology.
+# Copyright (C) 2024 KTH Royal Institute of Technology.
 #
 # Invenio is free software; you can redistribute it and/or modify it
 # under the terms of the MIT License; see LICENSE file for more details.
@@ -10,6 +11,7 @@
 
 from flask_principal import Identity
 from invenio_accounts.models import Role
+from invenio_i18n import lazy_gettext as _
 from invenio_records_resources.services.records.components import ServiceComponent
 
 from invenio_communities.members.records.api import MemberMixin
@@ -29,7 +31,7 @@ def _member_changed(self, member, community=None):
                 user_ids = [member.user_id]
             elif member.group_id:
                 if not community:
-                    raise TypeError("Community must be defined.")
+                    raise TypeError(_("Community must be defined."))
                 on_group_membership_change(str(community.id))
             else:
                 return
@@ -38,13 +40,13 @@ def _member_changed(self, member, community=None):
                 user_ids = [member["id"]]
             elif member.get("type") == "group":
                 if not community:
-                    raise TypeError("Community must be defined.")
+                    raise TypeError(_("Community must be defined."))
                 on_group_membership_change(str(community.id))
             else:
                 return
         else:
             raise TypeError(
-                "Member must be 'MemberMixin' or 'dict' but was {type}".format(
+                _("Member must be 'MemberMixin' or 'dict' but was {type}").format(
                     type=type(member)
                 )
             )
diff --git a/invenio_communities/members/services/fields.py b/invenio_communities/members/services/fields.py
index cce0180d4..951684391 100644
--- a/invenio_communities/members/services/fields.py
+++ b/invenio_communities/members/services/fields.py
@@ -2,6 +2,7 @@
 #
 # Copyright (C) 2022 CERN.
 # Copyright (C) 2023 Graz University of Technology.
+# Copyright (C) 2024 KTH Royal Institute of Technology.
 #
 # Invenio-Communities is free software; you can redistribute it and/or modify
 # it under the terms of the MIT License; see LICENSE file for more details.
@@ -41,4 +42,4 @@ def _serialize(self, value, attr, obj, **kwargs):
         elif isinstance(value, str):
             if value in current_roles:
                 return value
-        raise RuntimeError("Not a valid role to serialize.")
+        raise RuntimeError(_("Not a valid role to serialize."))
diff --git a/invenio_communities/roles.py b/invenio_communities/roles.py
index b719c3ceb..33e9c9896 100644
--- a/invenio_communities/roles.py
+++ b/invenio_communities/roles.py
@@ -1,6 +1,7 @@
 # -*- coding: utf-8 -*-
 #
 # Copyright (C) 2022 CERN.
+# Copyright (C) 2024 KTH Royal Institute of Technology.
 #
 # Invenio-Communities is free software; you can redistribute it and/or modify
 # it under the terms of the MIT License; see LICENSE file for more details.
@@ -9,6 +10,8 @@
 
 from dataclasses import dataclass, field
 
+from invenio_i18n import lazy_gettext as _
+
 
 @dataclass(frozen=True)
 class Role:
@@ -58,9 +61,9 @@ def __init__(self, roles_definitions):
 
         for r in self._roles:
             if r.is_owner:
-                assert self._owner is None, "Only one role be defined as owner."
+                assert self._owner is None, _("Only one role be defined as owner.")
                 self._owner = r
-        assert self._owner is not None, "One role must be defined as owner."
+        assert self._owner is not None, _("One role must be defined as owner.")
 
     def __contains__(self, key):
         """Determine if key is a valid role id."""
diff --git a/invenio_communities/subcommunities/services/schema.py b/invenio_communities/subcommunities/services/schema.py
index 1b03c0182..8b1038924 100644
--- a/invenio_communities/subcommunities/services/schema.py
+++ b/invenio_communities/subcommunities/services/schema.py
@@ -1,11 +1,13 @@
 # -*- coding: utf-8 -*-
 #
 # Copyright (C) 2024 CERN.
+# Copyright (C) 2024 KTH Royal Institute of Technology.
 #
 # Invenio-Communities is free software; you can redistribute it and/or modify
 # it under the terms of the MIT License; see LICENSE file for more details.
 """Subcommunities service schemas."""
 
+from invenio_i18n import lazy_gettext as _
 from marshmallow import Schema, ValidationError, fields, post_load, pre_load
 
 
@@ -45,6 +47,6 @@ def validate(self, data, **kwargs):
         """Validate that either community_id or community is provided."""
         if "community_id" not in data and "community" not in data:
             raise ValidationError(
-                "Either community_id or community should be provided."
+                _("Either community_id or community should be provided.")
             )
         return data
diff --git a/invenio_communities/views/communities.py b/invenio_communities/views/communities.py
index 86590917e..5948d363d 100644
--- a/invenio_communities/views/communities.py
+++ b/invenio_communities/views/communities.py
@@ -3,6 +3,7 @@
 # This file is part of Invenio.
 # Copyright (C) 2016-2024 CERN.
 # Copyright (C) 2023 Graz University of Technology.
+# Copyright (C) 2024 KTH Royal Institute of Technology.
 #
 # Invenio is free software; you can redistribute it and/or modify it
 # under the terms of the MIT License; see LICENSE file for more details.
@@ -28,7 +29,7 @@
 
 VISIBILITY_FIELDS = [
     {
-        "text": "Public",
+        "text": _("Public"),
         "value": "public",
         "icon": "group",
         "helpText": _(
@@ -36,7 +37,7 @@
         ),
     },
     {
-        "text": "Restricted",
+        "text": _("Restricted"),
         "value": "restricted",
         "icon": "lock",
         "helpText": _("Your community is restricted to users" " with access."),
@@ -45,7 +46,7 @@
 
 MEMBERS_VISIBILITY_FIELDS = [
     {
-        "text": "Public",
+        "text": _("Public"),
         "value": "public",
         "icon": "group",
         "helpText": _(
@@ -54,7 +55,7 @@
         ),
     },
     {
-        "text": "Members-only",
+        "text": _("Members-only"),
         "value": "restricted",
         "icon": "lock",
         "helpText": _(
@@ -66,7 +67,7 @@
 
 RECORDS_SUBMISSION_POLICY_FIELDS = [
     {
-        "text": "Open",
+        "text": _("Open"),
         "value": "open",
         "icon": "lock open",
         "helpText": _(
@@ -75,23 +76,22 @@
         ),
     },
     {
-        "text": "Closed",
+        "text": _("Closed"),
         "value": "closed",
         "icon": "lock",
         "helpText": _("Only members can submit records to the community."),
     },
 ]
 
-
 REVIEW_POLICY_FIELDS = [
     {
-        "text": "Review all submissions",
+        "text": _("Review all submissions"),
         "value": "closed",
         "icon": "lock",
         "helpText": _("All submissions to the community must be reviewed."),
     },
     {
-        "text": "Allow curators, managers and owners to publish without review",
+        "text": _("Allow curators, managers and owners to publish without review"),
         "value": "open",
         "icon": "group",
         "helpText": _(
@@ -99,7 +99,7 @@
         ),
     },
     {
-        "text": "Allow all members to publish without review",
+        "text": _("Allow all members to publish without review"),
         "value": "members",
         "icon": "lock open",
         "helpText": _(
@@ -108,16 +108,15 @@
     },
 ]
 
-
 MEMBER_POLICY_FIELDS = [
     {
-        "text": "Open",
+        "text": _("Open"),
         "value": "open",
         "icon": "user plus",
         "helpText": _("Users can request to join your community."),
     },
     {
-        "text": "Closed",
+        "text": _("Closed"),
         "value": "closed",
         "icon": "user times",
         "helpText": _(