diff --git a/NEWS.md b/NEWS.md
index c073378..7d385e6 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -4,8 +4,13 @@
 (cf. Antares v9 changelog)
 
 NEW FEATURES (Antares v9.0) :  
+
 * `createStudy()` takes into account the new format of Antares studies (e.g. 9.0, 9.15 instead of 900, 915) 
 
+BUGFIXES :  
+
+* *[private function]* `api_command_execute()` manage snapshot generation of a variant study with a tempo to wait the end of current task (prevents the order from being ignored).
+
 
 
 # antaresEditObject 0.7.1
diff --git a/R/API-utils.R b/R/API-utils.R
index 1176a5e..1cb8bb8 100644
--- a/R/API-utils.R
+++ b/R/API-utils.R
@@ -200,9 +200,38 @@ api_command_execute <- function(command, opts, text_alert = "{msg_api}") {
   msg_api=" " # HACK /!\
   cli::cli_alert_success(paste0(text_alert, "success"))
   
-  # one more "PUT" "/generate" for variant only
+  # Snaphost /generate" for variant only
   if (is_variant(opts)) {
-    api_put(opts, paste0(opts$study_id, "/generate"))
+    variant_res <- api_put(opts, paste0(opts$study_id, "/generate"))
+    
+    # retrieve task information
+    result_task_id <- api_get(opts = opts, 
+                              endpoint = file.path("v1", "tasks", variant_res), 
+                              default_endpoint = NULL)
+    
+    while(is.null(result_task_id$result)) {
+      message("...Generate Snapshot task in progress...")
+      if(is.null(opts$sleep))
+        Sys.sleep(0.5)
+      else
+        Sys.sleep(opts$sleep)
+      result_task_id <- api_get(opts = opts, 
+                                endpoint = file.path("v1", "tasks", variant_res), 
+                                default_endpoint = NULL)
+    }
+    
+    # test if task is terminated with success
+    result_task_id_log <- result_task_id$result
+    
+    status <- isTRUE(result_task_id_log$success)
+    
+    details_command <- jsonlite::fromJSON(result_task_id_log$return_value, 
+                                          simplifyVector = FALSE)
+    
+    if(status)
+      message(paste0("Snapshot generated for : ", details_command$details[[1]]$name))
+    else
+      stop(paste0("Not success for task : ", details_command$details[[1]]$name))
     return(invisible(TRUE))
   }
 }