diff --git a/src/frostfs_testlib/resources/error_patterns.py b/src/frostfs_testlib/resources/error_patterns.py
index e92b33d..5491a7a 100644
--- a/src/frostfs_testlib/resources/error_patterns.py
+++ b/src/frostfs_testlib/resources/error_patterns.py
@@ -25,3 +25,6 @@ INVALID_LENGTH_SPECIFIER = "invalid '{range}' range length specifier"
 
 S3_BUCKET_DOES_NOT_ALLOW_ACL = "The bucket does not allow ACLs"
 S3_MALFORMED_XML_REQUEST = "The XML you provided was not well-formed or did not validate against our published schema."
+
+RULE_ACCESS_DENIED_CONTAINER = "access to container operation {operation} is denied by access policy engine: Access denied"
+RULE_ACCESS_DENIED_OBJECT = "access to object operation denied: ape denied request: method {operation}: Access denied"