diff --git a/CHANGELOG.md b/CHANGELOG.md
index e047a23..f2b7807 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,7 +6,7 @@ This document outlines major changes between releases.
 
 ### Added
 - Exposure of pool metrics (#615)
-- Configuration of `set_copies_number` (#634)
+- Configuration of `set_copies_number` (#634, #637)
 ### Changed
 - Improved wallet configuration via `.yaml` config and environment variables (#607)
 ### Removed
diff --git a/docs/configuration.md b/docs/configuration.md
index 3b568e3..0fffdc1 100644
--- a/docs/configuration.md
+++ b/docs/configuration.md
@@ -368,7 +368,8 @@ prometheus:
 
 # `neofs` section
 
-Contains parameters of requests to NeoFS.
+Contains parameters of requests to NeoFS. 
+This value can be overridden with `X-Amz-Meta-Neofs-Copies-Number` header for `PutObject`, `CopyObject`, `CreateMultipartUpload`.
 
 ```yaml
 neofs: