Is a recourse admissible against an authorization to proceed under Article 209 CPC?
No, unless the appellant shows a difficult-to-repair prejudice under Article 319 let. b ch. 2 CPC.
The authorization to proceed is an ordinary conciliation-stage act that only allows the merits action to begin; the CPC does not provide a specific appeal. The appellant remains able to raise his defenses before the trial court, so no irreparable legal prejudice exists.