diff --git a/docs-ref-autogen/azure-storage-blob/azure.storage.blob.BlobClient.yml b/docs-ref-autogen/azure-storage-blob/azure.storage.blob.BlobClient.yml
index 125c6eb9861b..1632004c163e 100644
--- a/docs-ref-autogen/azure-storage-blob/azure.storage.blob.BlobClient.yml
+++ b/docs-ref-autogen/azure-storage-blob/azure.storage.blob.BlobClient.yml
@@ -3517,7 +3517,7 @@ methods:
     checking the copy status. Set *requires_sync* to True to force the copy to be
     synchronous.
 
-    The Blob service copies blobs on a best-effort basis.
+    Due to the asynchronous nature of the copy operation, Blob Storage copies blobs on a best-effort basis. The Blob service copies blobs when server resources are not being utilized by other tasks, so a copy is not guaranteed to start immediately or complete in a specified timeframe.
 
 
     The source blob for a copy operation may be a block blob, an append blob,