Feature: IncludeNestedStacks switch for "sam deploy" command

Author: tomasz-bresCreated Feb 12, 2025Updated Feb 3, 2026
Labelsstage/needs-investigation

Hello

With "AWS::Serverless::Application" the SAM project can be divided into multiple templates. However with the sam deploy command, the created changeset doesn't show an impact on resources within nested stacks.

Example:

CloudFormation stack changeset
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Operation                                         LogicalResourceId                                 ResourceType                                      Replacement                                     
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
* Modify                                          IoT                                               AWS::CloudFormation::Stack                        False                                           
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

It would be nice to have "IncludeNestedStacks" same way as it's available for CreateChangeSet command for Cloudformation.

Source: aws/serverless-application-model