What would happen if I send the same correlation id for multiple lookup requests to SophosLabs lookup?

In the documentation for SophosLabs File Malware Cloud Lookup API (https://api.labs.sophos.com/doc/lookup/files.html), a correlationId is mentioned. How should this be generated? Should be unique for a caller or for each lookup?

Solution

I would suggest to generate UUID4 (32 chars) for each request and add some constant pre/postfix (8 chars) as you wish.

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What would happen if I send the same correlation id for multiple lookup requests to SophosLabs lookup?