diff --git a/services/external/weni/service.go b/services/external/weni/service.go
index f9a14da23..aa28f99be 100644
--- a/services/external/weni/service.go
+++ b/services/external/weni/service.go
@@ -99,6 +99,7 @@ func (s *service) Call(session flows.Session, params assets.MsgCatalogParam, log
 	}
 
 	productRetailerIDS := []string{}
+	productRetailerIDMap := make(map[string]struct{})
 
 	for _, product := range productList {
 		searchResult, trace, err := GetProductListFromSentenX(product, catalog.FacebookCatalogID(), searchThreshold, s.rtConfig)
@@ -107,7 +108,12 @@ func (s *service) Call(session flows.Session, params assets.MsgCatalogParam, log
 			return callResult, errors.Wrapf(err, "on iterate to search products on sentenx")
 		}
 		for _, prod := range searchResult {
-			productRetailerIDS = append(productRetailerIDS, prod["product_retailer_id"])
+			productRetailerID := prod["product_retailer_id"]
+			_, exists := productRetailerIDMap[productRetailerID]
+			if !exists {
+				productRetailerIDS = append(productRetailerIDS, productRetailerID)
+				productRetailerIDMap[productRetailerID] = struct{}{}
+			}
 		}
 	}