diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 00000000..89d0f696
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,7 @@
+[submodule "external/hibou-oca/server-tools"]
+	path = external/hibou-oca/server-tools
+	url = https://github.com/hibou-io/oca-server-tools.git
+	branch = 14.0
+[submodule "external/hibou-oca/sale-workflow"]
+	path = external/hibou-oca/sale-workflow
+	url = https://github.com/hibou-io/oca-sale-workflow.git
diff --git a/base_exception b/base_exception
new file mode 120000
index 00000000..c13e831d
--- /dev/null
+++ b/base_exception
@@ -0,0 +1 @@
+./external/hibou-oca/server-tools/base_exception
\ No newline at end of file
diff --git a/external/hibou-oca/sale-workflow b/external/hibou-oca/sale-workflow
new file mode 160000
index 00000000..41ea3871
--- /dev/null
+++ b/external/hibou-oca/sale-workflow
@@ -0,0 +1 @@
+Subproject commit 41ea3871574f756553f644595c13e4b797bbb66e
diff --git a/external/hibou-oca/server-tools b/external/hibou-oca/server-tools
new file mode 160000
index 00000000..3d872f3b
--- /dev/null
+++ b/external/hibou-oca/server-tools
@@ -0,0 +1 @@
+Subproject commit 3d872f3bfaa19ed56b6da18b4026b75c614d8713
diff --git a/sale_exception b/sale_exception
new file mode 120000
index 00000000..f1797a5a
--- /dev/null
+++ b/sale_exception
@@ -0,0 +1 @@
+./external/hibou-oca/sale-workflow/sale_exception
\ No newline at end of file