**To delete a function definition** The following ``delete-function-definition`` example deletes the specified Greengrass function definition. If you delete a function definition that is used by a group, that group can't be deployed successfully. :: aws greengrass delete-function-definition \ --function-definition-id "fd4b906a-dff3-4c1b-96eb-52ebfcfac06a" This command produces no output.