Used versions:

Apache Camel 3.11.5.fuse-800012-redhat-00004

Camel Quarkus 2.2.1.fuse-800015-redhat-00004

According to the documentation, we need to set up only SQS_OPERATION (CamelAwsSqsOperation) header with "purgeQueue" value. 

However, only with this header, the operation doesn't work:

software.amazon.awssdk.services.sqs.model.QueueDoesNotExistException: The specified queue does not exist for this wsdl version. (Service: Sqs, Status Code: 400, Request ID: 03ef084c-b377-50c1-ba5d-52b8bea4502d, Extended Request ID: null) 

We found out (thanks to this) that if we set up also SQS_QUEUE_PREFIX (CamelAwsSqsPrefix) header with ANY value, the purge queue operation is successful. 

We should be able to purge the queue without the prefix, as it is stated in doc. Also, we can use prefix with any value, so it is quite redundant.