fix(accounts): Allow setting Number of new Cost Center (#40212)

diff --git a/erpnext/accounts/doctype/cost_center/cost_center.json b/erpnext/accounts/doctype/cost_center/cost_center.json
index 7cbb290..2e66db7 100644
--- a/erpnext/accounts/doctype/cost_center/cost_center.json
+++ b/erpnext/accounts/doctype/cost_center/cost_center.json
@@ -41,7 +41,7 @@
    "in_list_view": 1,
    "in_standard_filter": 1,
    "label": "Cost Center Number",
-   "read_only": 1
+   "read_only_depends_on": "eval:!doc.__islocal"
   },
   {
    "fieldname": "parent_cost_center",
@@ -170,4 +170,4 @@
  "sort_field": "modified",
  "sort_order": "ASC",
  "states": []
-}
\ No newline at end of file
+}