title: Cloudformation template update without deleting the existing stack and resources?
body: <p>I have created a stack with multiple resources such as s3 , dynamodb ,lambda functions.
  I am trying to update the stack with the same environment, but the resources names of both the stacks are same such as &quot;dynamodb_cust_data_dev&quot; .</p>
  <p>I always get an error that this xyz resource already exists with the same name.
  Stack creation failed</p>
  <blockquote>
  <p>client_variable_mapping_dev already exists in stack arn:aws:cloudformation:ap-south-1:505xxxxxxx:stack/dev-test/f7f1af20-e199-11ec-b2be-061b20ab09f2</p>
  </blockquote>
  <p>Is it possible that the new stack overwrites the old resources which have the same names?</p>