diff --git a/template.yaml b/template.yaml
index ae9dd98..191e940 100644
--- a/template.yaml
+++ b/template.yaml
@@ -534,12 +534,14 @@ Resources:
     Condition: CreateFunction
     Properties:
       FunctionName: !If [SetFunctionName, !Ref FunctionName, !Ref AWS::NoValue]
+      Description: "An instance of ssosync deplyed from the Serverless Application Repository, for details see http://https://github.com/awslabs/ssosync"
       Role: !If [RemoteSecrets, !GetAtt SSOSyncRoleRemote.Arn, !GetAtt SSOSyncRoleLocal.Arn]
       Runtime: provided.al2
       Handler: bootstrap
       Architectures:
         - arm64
       Timeout: !Ref TimeOut
+      ReservedConcurrentExecutions: 1
       Environment:
         Variables:
           LOG_LEVEL: !Ref LogLevel