Can i allow all IP addresses to my database?

I host a script on heroku but they dont provide their IP so i need to allow all on digitalocean.

I tried which changed to “AllIPv4” when i entered it but when i click save, it gives me the error: “The prefix (the number following the slash) cannot be less than 10.”.

Any help is appreciated!

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I think that if you don’t specify any IP addresses and leave the allow list empty it would mean that the traffic to the database cluster would be allowed for everyone.