diff --git a/erpnext/manufacturing/doctype/bom/bom.js b/erpnext/manufacturing/doctype/bom/bom.js
index 6267ee4d029..92e4715590b 100644
--- a/erpnext/manufacturing/doctype/bom/bom.js
+++ b/erpnext/manufacturing/doctype/bom/bom.js
@@ -250,6 +250,13 @@ frappe.ui.form.on("BOM", {
 			});
 		}
 
+		fields.push({
+			fieldtype: "Check",
+			label: __("Use Multi-Level BOM"),
+			fieldname: "use_multi_level_bom",
+			default: 1,
+		});
+
 		if (!skip_qty_field) {
 			fields.push({
 				fieldtype: "Float",
diff --git a/erpnext/manufacturing/doctype/bom/bom.py b/erpnext/manufacturing/doctype/bom/bom.py
index c3105b8e9ec..41ea6f80f10 100644
--- a/erpnext/manufacturing/doctype/bom/bom.py
+++ b/erpnext/manufacturing/doctype/bom/bom.py
@@ -179,10 +179,14 @@ class BOM(WebsiteGenerator):
 			"BOM", filters={"name": ("like", search_key), "amended_from": ["is", "not set"]}, pluck="name"
 		)
 
+<<<<<<< HEAD
 		if existing_boms:
 			index = self.get_next_version_index(existing_boms)
 		else:
 			index = 1
+=======
+		index = self.get_index_for_bom(existing_boms)
+>>>>>>> a5cc307417 (fix: BOM name issue (backport #44586) (#44589))
 
 		prefix = self.doctype
 		suffix = "%.3i" % index  # convert index to string (1 -> "001")
@@ -200,21 +204,23 @@ class BOM(WebsiteGenerator):
 			name = f"{prefix}-{truncated_item_name}-{suffix}"
 
 		if frappe.db.exists("BOM", name):
-			conflicting_bom = frappe.get_doc("BOM", name)
+			existing_boms = frappe.get_all(
+				"BOM", filters={"name": ("like", search_key), "amended_from": ["is", "not set"]}, pluck="name"
+			)
 
-			if conflicting_bom.item != self.item:
-				msg = _("A BOM with name {0} already exists for item {1}.").format(
-					frappe.bold(name), frappe.bold(conflicting_bom.item)
-				)
-
-				frappe.throw(
-					_("{0}{1} Did you rename the item? Please contact Administrator / Tech support").format(
-						msg, "<br>"
-					)
-				)
+			index = self.get_index_for_bom(existing_boms)
+			suffix = "%.3i" % index
+			name = f"{prefix}-{self.item}-{suffix}"
 
 		self.name = name
 
+	def get_index_for_bom(self, existing_boms):
+		index = 1
+		if existing_boms:
+			index = self.get_next_version_index(existing_boms)
+
+		return index
+
 	@staticmethod
 	def get_next_version_index(existing_boms: list[str]) -> int:
 		# split by "/" and "-"