fix: unlink task rather than deleting it (#17485)
diff --git a/erpnext/projects/doctype/project/project.py b/erpnext/projects/doctype/project/project.py
index 9b92bda..39222ac 100644
--- a/erpnext/projects/doctype/project/project.py
+++ b/erpnext/projects/doctype/project/project.py
@@ -358,7 +358,8 @@
if not self.get('deleted_task_list'): return
for d in self.get('deleted_task_list'):
- frappe.delete_doc("Task", d)
+ # unlink project
+ frappe.db.set_value('Task', d, 'project', '')
self.deleted_task_list = []