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You try to update a stack but receive an error: 'No updates are to be performed.' What is the likely cause?

medium📝 Debug Q6 of 15
AWS - CloudFormation
You try to update a stack but receive an error: 'No updates are to be performed.' What is the likely cause?
AThe stack is currently being deleted.
BThe template and parameters are identical to the current stack.
CThe AWS CLI command syntax is incorrect.
DThe stack has resources with DeletionPolicy set to Retain.
Step-by-Step Solution
Solution:
  1. Step 1: Understand 'No updates are to be performed' error

    This error occurs when the update request does not change any resource or parameter.
  2. Step 2: Identify cause from options

    If template and parameters match current stack exactly, no update happens and error is returned.
  3. Final Answer:

    The template and parameters are identical to the current stack. -> Option B
  4. Quick Check:

    No changes = no update error = B [OK]
Quick Trick: No changes in template or params cause no update error [OK]
Common Mistakes:
  • Assuming error means syntax or deletion issues
  • Confusing DeletionPolicy with update errors
  • Thinking CLI syntax causes this error

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