diff --git a/htdocs/install/mysql/migration/17.0.0-18.0.0.sql b/htdocs/install/mysql/migration/17.0.0-18.0.0.sql
index 11495748eff..328d6537ae0 100644
--- a/htdocs/install/mysql/migration/17.0.0-18.0.0.sql
+++ b/htdocs/install/mysql/migration/17.0.0-18.0.0.sql
@@ -70,4 +70,13 @@ ALTER TABLE llx_bank_account ADD COLUMN owner_zip varchar(25);
 ALTER TABLE llx_bank_account ADD COLUMN owner_town varchar(50);
 ALTER TABLE llx_bank_account ADD COLUMN owner_country_id integer DEFAULT NULL;
 
-  
+
+ALTER TABLE llx_supplier_proposal ADD UNIQUE INDEX uk_supplier_proposal_ref (ref, entity);
+
+ALTER TABLE llx_supplier_proposal ADD INDEX idx_supplier_proposal_fk_soc (fk_soc);
+ALTER TABLE llx_supplier_proposal ADD INDEX idx_supplier_proposal_fk_user_author (fk_user_author);
+ALTER TABLE llx_supplier_proposal ADD INDEX idx_supplier_proposal_fk_user_valid (fk_user_valid);
+ALTER TABLE llx_supplier_proposal ADD INDEX idx_supplier_proposal_fk_projet (fk_projet);
+ALTER TABLE llx_supplier_proposal ADD INDEX idx_supplier_proposal_fk_account(fk_account);
+
+
diff --git a/htdocs/install/mysql/tables/llx_supplier_proposal.key.sql b/htdocs/install/mysql/tables/llx_supplier_proposal.key.sql
new file mode 100644
index 00000000000..350338f833d
--- /dev/null
+++ b/htdocs/install/mysql/tables/llx_supplier_proposal.key.sql
@@ -0,0 +1,34 @@
+-- ============================================================================
+-- Copyright (C) 2023 Laurent Destailleur  <eldy@users.sourceforge.net>
+--
+-- This program is free software; you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as published by
+-- the Free Software Foundation; either version 3 of the License, or
+-- (at your option) any later version.
+--
+-- This program is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+--
+-- You should have received a copy of the GNU General Public License
+-- along with this program. If not, see <https://www.gnu.org/licenses/>.
+--
+-- ============================================================================
+
+
+ALTER TABLE llx_supplier_proposal ADD UNIQUE INDEX uk_supplier_proposal_ref (ref, entity);
+
+ALTER TABLE llx_supplier_proposal ADD INDEX idx_supplier_proposal_fk_soc (fk_soc);
+ALTER TABLE llx_supplier_proposal ADD INDEX idx_supplier_proposal_fk_user_author (fk_user_author);
+ALTER TABLE llx_supplier_proposal ADD INDEX idx_supplier_proposal_fk_user_valid (fk_user_valid);
+ALTER TABLE llx_supplier_proposal ADD INDEX idx_supplier_proposal_fk_projet (fk_projet);
+ALTER TABLE llx_supplier_proposal ADD INDEX idx_supplier_proposal_fk_account(fk_account);
+
+--ALTER TABLE llx_propal ADD CONSTRAINT fk_propal_fk_soc FOREIGN KEY (fk_soc) REFERENCES llx_societe (rowid);
+--ALTER TABLE llx_propal ADD CONSTRAINT fk_propal_fk_user_author	FOREIGN KEY (fk_user_author) REFERENCES llx_user (rowid);
+--ALTER TABLE llx_propal ADD CONSTRAINT fk_propal_fk_user_valid	FOREIGN KEY (fk_user_valid)  REFERENCES llx_user (rowid);
+--ALTER TABLE llx_propal ADD CONSTRAINT fk_propal_fk_user_signature   FOREIGN KEY (fk_user_signature) REFERENCES llx_user (rowid);
+--ALTER TABLE llx_propal ADD CONSTRAINT fk_propal_fk_user_cloture	FOREIGN KEY (fk_user_cloture) REFERENCES llx_user (rowid);
+--ALTER TABLE llx_propal ADD CONSTRAINT fk_propal_fk_projet		FOREIGN KEY (fk_projet) REFERENCES llx_projet (rowid);
+--ALTER TABLE llx_propal ADD CONSTRAINT fk_propal_fk_warehouse 	FOREIGN KEY (fk_warehouse) REFERENCES llx_entrepot(rowid);