diff --git a/reference/OpenAPI.json b/reference/OpenAPI.json
index e7b58435a..164b06e75 100644
--- a/reference/OpenAPI.json
+++ b/reference/OpenAPI.json
@@ -35087,7 +35087,7 @@
       "QualificationsStackingRulesResponse": {
         "type": "object",
         "title": "Examine Qualification Stacking Rules",
-        "description": "Defines stacking rules for the redeemables.",
+        "description": "Defines stacking rules for the redeemables. See more in [help center](https://support.voucherify.io/article/604-stacking-rules)",
         "properties": {
           "redeemables_limit": {
             "type": "integer",
@@ -35105,14 +35105,14 @@
           },
           "applicable_exclusive_redeemables_limit": {
             "type": "integer",
-            "description": "",
+            "description": "Defines how many redeemables with an exclusive category can be applied in one request.",
             "default": 1,
             "maximum": 30,
             "minimum": 1
           },
           "exclusive_categories": {
             "type": "array",
-            "description": "",
+            "description": "Lists all exclusive categories. A redeemable from a campaign with an exclusive category is the only redeemable to be redeemed when applied with redeemables from other campaigns unless these campaigns are exclusive or joint.",
             "default": [],
             "items": {
               "type": "string"
@@ -35120,7 +35120,7 @@
           },
           "joint_categories":  {
             "type": "array",
-            "description": "",
+            "description": "Lists all joint categories. A campaign with a joint category is always applied regardless of the exclusivity of other campaigns.",
             "default" : [],
             "items": {
               "type": "string"