AWS - CloudFormationYou 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.Check Answer
Step-by-Step SolutionSolution:Step 1: Understand 'No updates are to be performed' errorThis error occurs when the update request does not change any resource or parameter.Step 2: Identify cause from optionsIf template and parameters match current stack exactly, no update happens and error is returned.Final Answer:The template and parameters are identical to the current stack. -> Option BQuick 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 issuesConfusing DeletionPolicy with update errorsThinking CLI syntax causes this error
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