1 files changed, 10 insertions, 0 deletions
diff --git a/docs/sample_config.yaml b/docs/sample_config.yaml
index 1b86d0295d..b38e6d6c88 100644
--- a/docs/sample_config.yaml
+++ b/docs/sample_config.yaml
@@ -1428,6 +1428,16 @@ account_threepid_delegates:
 #
 #auto_join_rooms_for_guests: false
 
+# Whether to inhibit errors raised when registering a new account if the user ID
+# already exists. If turned on, that requests to /register/available will always
+# show a user ID as available, and Synapse won't raise an error when starting
+# a registration with a user ID that already exists. However, Synapse will still
+# raise an error if the registration completes and the username conflicts.
+#
+# Defaults to false.
+#
+#inhibit_user_in_use_error: true
+
 
 ## Metrics ###