diff --git a/sync-service/src/main/java/com/teterialosjuanjos/tfg/sync_service/integration/dolibarr/dto/DolibarrOrderDto.java b/sync-service/src/main/java/com/teterialosjuanjos/tfg/sync_service/integration/dolibarr/dto/DolibarrOrderDto.java
index 858f844..d74a312 100644
--- a/sync-service/src/main/java/com/teterialosjuanjos/tfg/sync_service/integration/dolibarr/dto/DolibarrOrderDto.java
+++ b/sync-service/src/main/java/com/teterialosjuanjos/tfg/sync_service/integration/dolibarr/dto/DolibarrOrderDto.java
@@ -1,5 +1,6 @@
 package com.teterialosjuanjos.tfg.sync_service.integration.dolibarr.dto;
 
+import com.fasterxml.jackson.annotation.JsonAlias;
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonProperty;
@@ -19,8 +20,8 @@ public record DolibarrOrderDto(
         String ref,
         /** Thirdparty (customer) internal ID */
         Integer socid,
-        /** Order date as UNIX timestamp */
-        @JsonProperty("date_commande") Long dateCommande,
+        /** Order date as UNIX timestamp. POST requires "date"; GET response uses "date_commande". */
+        @JsonProperty("date") @JsonAlias("date_commande") Long dateCommande,
         /** 0 = draft, 1 = validated, 2 = shipped, 3 = canceled */
         Integer statut,
         @JsonProperty("note_public") String notePublic,