diff --git a/common/models/user.py b/common/models/user.py
index a29ff5d..7c895a1 100644
--- a/common/models/user.py
+++ b/common/models/user.py
@@ -186,6 +186,7 @@ class TenantMake(db.Model):
     active = db.Column(db.Boolean, nullable=False, default=True)
     website = db.Column(db.String(255), nullable=True)
     logo_url = db.Column(db.String(255), nullable=True)
+    allowed_languages = db.Column(ARRAY(sa.String(2)), nullable=True)
 
     # Chat customisation options
     chat_customisation_options = db.Column(JSONB, nullable=True)
diff --git a/config/customisations/globals/CHAT_CLIENT_CUSTOMISATION/1.0.0.yaml b/config/customisations/globals/CHAT_CLIENT_CUSTOMISATION/1.0.0.yaml
index 2f08133..3b4d063 100644
--- a/config/customisations/globals/CHAT_CLIENT_CUSTOMISATION/1.0.0.yaml
+++ b/config/customisations/globals/CHAT_CLIENT_CUSTOMISATION/1.0.0.yaml
@@ -56,11 +56,6 @@ configuration:
     description: "Sidebar Markdown-formatted Text"
     type: "text"
     required: false
-  "welcome_message":
-    name: "Welcome Message"
-    description: "Text to be shown as Welcome"
-    type: "text"
-    required: false
 metadata:
   author: "Josako"
   date_added: "2024-06-06"
diff --git a/eveai_app/views/user_forms.py b/eveai_app/views/user_forms.py
index b364f36..6fa7b7d 100644
--- a/eveai_app/views/user_forms.py
+++ b/eveai_app/views/user_forms.py
@@ -196,6 +196,14 @@ class TenantMakeForm(DynamicFormBase):
     active = BooleanField('Active', validators=[Optional()], default=True)
     website = StringField('Website', validators=[DataRequired(), Length(max=255)])
     logo_url = StringField('Logo URL', validators=[Optional(), Length(max=255)])
+    allowed_languages = SelectMultipleField('Allowed Languages', choices=[], validators=[Optional()])
+
+    def __init__(self, *args, **kwargs):
+        super(TenantMakeForm, self).__init__(*args, **kwargs)
+        # Initialiseer de taalopties met taalcodes en vlaggen
+        lang_details = current_app.config['SUPPORTED_LANGUAGE_DETAILS']
+        self.allowed_languages.choices = [(details['iso 639-1'], f"{details['flag']} {details['iso 639-1']}") 
+                                         for name, details in lang_details.items()]
 
 class EditTenantMakeForm(DynamicFormBase):
     id = IntegerField('ID', widget=HiddenInput())
@@ -204,6 +212,14 @@ class EditTenantMakeForm(DynamicFormBase):
     active = BooleanField('Active', validators=[Optional()], default=True)
     website = StringField('Website', validators=[DataRequired(), Length(max=255)])
     logo_url = StringField('Logo URL', validators=[Optional(), Length(max=255)])
+    allowed_languages = SelectMultipleField('Allowed Languages', choices=[], validators=[Optional()])
+
+    def __init__(self, *args, **kwargs):
+        super(EditTenantMakeForm, self).__init__(*args, **kwargs)
+        # Initialiseer de taalopties met taalcodes en vlaggen
+        lang_details = current_app.config['SUPPORTED_LANGUAGE_DETAILS']
+        self.allowed_languages.choices = [(details['iso 639-1'], f"{details['flag']} {details['iso 639-1']}") 
+                                         for name, details in lang_details.items()]
 
 
 
diff --git a/eveai_app/views/user_views.py b/eveai_app/views/user_views.py
index 47855ce..5810587 100644
--- a/eveai_app/views/user_views.py
+++ b/eveai_app/views/user_views.py
@@ -655,6 +655,8 @@ def tenant_make():
         new_tenant_make.tenant_id = tenant_id
         customisation_options = form.get_dynamic_data("configuration")
         new_tenant_make.chat_customisation_options = json.dumps(customisation_options)
+        # Verwerk allowed_languages als array
+        new_tenant_make.allowed_languages = form.allowed_languages.data if form.allowed_languages.data else None
         set_logging_information(new_tenant_make, dt.now(tz.utc))
 
         try:
@@ -703,6 +705,10 @@ def edit_tenant_make(tenant_make_id):
     # Create form instance with the tenant make
     form = EditTenantMakeForm(request.form, obj=tenant_make)
 
+    # Initialiseer de allowed_languages selectie met huidige waarden
+    if tenant_make.allowed_languages:
+        form.allowed_languages.data = tenant_make.allowed_languages
+
     customisation_config = cache_manager.customisations_config_cache.get_config("CHAT_CLIENT_CUSTOMISATION")
     form.add_dynamic_fields("configuration", customisation_config, tenant_make.chat_customisation_options)
 
@@ -710,6 +716,8 @@ def edit_tenant_make(tenant_make_id):
         # Update basic fields
         form.populate_obj(tenant_make)
         tenant_make.chat_customisation_options = form.get_dynamic_data("configuration")
+        # Verwerk allowed_languages als array
+        tenant_make.allowed_languages = form.allowed_languages.data if form.allowed_languages.data else None
 
         # Update logging information
         update_logging_information(tenant_make, dt.now(tz.utc))
diff --git a/migrations/public/versions/e47dc002b678_add_allowed_languages_to_tenantmake_.py b/migrations/public/versions/e47dc002b678_add_allowed_languages_to_tenantmake_.py
new file mode 100644
index 0000000..12b6668
--- /dev/null
+++ b/migrations/public/versions/e47dc002b678_add_allowed_languages_to_tenantmake_.py
@@ -0,0 +1,53 @@
+"""Add allowed_languages to TenantMake, introduce TranslationCache
+
+Revision ID: e47dc002b678
+Revises: 83d4e90f87c6
+Create Date: 2025-06-26 13:43:43.719865
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision = 'e47dc002b678'
+down_revision = '83d4e90f87c6'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('translation_cache',
+    sa.Column('cache_key', sa.String(length=16), nullable=False),
+    sa.Column('source_text', sa.Text(), nullable=False),
+    sa.Column('translated_text', sa.Text(), nullable=False),
+    sa.Column('source_language', sa.String(length=2), nullable=False),
+    sa.Column('target_language', sa.String(length=2), nullable=False),
+    sa.Column('context', sa.Text(), nullable=True),
+    sa.Column('prompt_tokens', sa.Integer(), nullable=False),
+    sa.Column('completion_tokens', sa.Integer(), nullable=False),
+    sa.Column('created_at', sa.DateTime(), server_default=sa.text('now()'), nullable=False),
+    sa.Column('created_by', sa.Integer(), nullable=True),
+    sa.Column('updated_at', sa.DateTime(), server_default=sa.text('now()'), nullable=False),
+    sa.Column('updated_by', sa.Integer(), nullable=True),
+    sa.Column('last_used_at', sa.DateTime(), nullable=True),
+    sa.ForeignKeyConstraint(['created_by'], ['public.user.id'], ),
+    sa.ForeignKeyConstraint(['updated_by'], ['public.user.id'], ),
+    sa.PrimaryKeyConstraint('cache_key'),
+    schema='public'
+    )
+
+    with op.batch_alter_table('tenant_make', schema=None) as batch_op:
+        batch_op.add_column(sa.Column('allowed_languages', postgresql.ARRAY(sa.String(length=2)), nullable=True))
+
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('tenant_make', schema=None) as batch_op:
+        batch_op.drop_column('allowed_languages')
+
+        op.drop_table('translation_cache', schema='public')
+    # ### end Alembic commands ###