Credit Agricole do allow you to send to Revolut.
If you are setting up a “virement” on the web my CA blocks IBANs not starting with “FR” for security . Axa might do the same.
I got a form via email from the very helpful CA Britline, emailed it back and they phoned me back to verify it was me. I now transfer funds to and from CA via Revolut.
Which CA are you with as there are several CAs in different regions who might have differing forms, mines CA Atlantique-Vendee.