diff --git a/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.json b/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.json
index d91720f53..daf8899d0 100644
--- a/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.json
+++ b/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.json
@@ -76912,6 +76912,66 @@
               }
             }
           },
+          "400": {
+            "description": "Bad Request",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "title": "Basic Error",
+                  "description": "Basic Error",
+                  "type": "object",
+                  "properties": {
+                    "message": {
+                      "type": "string"
+                    },
+                    "documentation_url": {
+                      "type": "string"
+                    },
+                    "url": {
+                      "type": "string"
+                    },
+                    "status": {
+                      "type": "string"
+                    }
+                  }
+                }
+              },
+              "application/scim+json": {
+                "schema": {
+                  "title": "Scim Error",
+                  "description": "Scim Error",
+                  "type": "object",
+                  "properties": {
+                    "message": {
+                      "type": "string",
+                      "nullable": true
+                    },
+                    "documentation_url": {
+                      "type": "string",
+                      "nullable": true
+                    },
+                    "detail": {
+                      "type": "string",
+                      "nullable": true
+                    },
+                    "status": {
+                      "type": "integer"
+                    },
+                    "scimType": {
+                      "type": "string",
+                      "nullable": true
+                    },
+                    "schemas": {
+                      "type": "array",
+                      "items": {
+                        "type": "string"
+                      }
+                    }
+                  }
+                }
+              }
+            }
+          },
           "404": {
             "description": "Resource not found",
             "content": {
diff --git a/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.yaml b/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.yaml
index 93682b101..f52c336a6 100644
--- a/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.yaml
+++ b/descriptions/ghec/dereferenced/ghec.2022-11-28.deref.yaml
@@ -28794,6 +28794,7 @@ paths:
                       override_budget_id: 2066deda-923f-43f9-88d2-62395a28c0cdd
                     has_next_page: false
                     total_count: 2
+        '400': *14
         '404': *6
         '403': *29
         '500': *37
diff --git a/descriptions/ghec/dereferenced/ghec.2026-03-10.deref.json b/descriptions/ghec/dereferenced/ghec.2026-03-10.deref.json
index d8fb32a90..8d3de5b10 100644
--- a/descriptions/ghec/dereferenced/ghec.2026-03-10.deref.json
+++ b/descriptions/ghec/dereferenced/ghec.2026-03-10.deref.json
@@ -76771,6 +76771,66 @@
               }
             }
           },
+          "400": {
+            "description": "Bad Request",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "title": "Basic Error",
+                  "description": "Basic Error",
+                  "type": "object",
+                  "properties": {
+                    "message": {
+                      "type": "string"
+                    },
+                    "documentation_url": {
+                      "type": "string"
+                    },
+                    "url": {
+                      "type": "string"
+                    },
+                    "status": {
+                      "type": "string"
+                    }
+                  }
+                }
+              },
+              "application/scim+json": {
+                "schema": {
+                  "title": "Scim Error",
+                  "description": "Scim Error",
+                  "type": "object",
+                  "properties": {
+                    "message": {
+                      "type": "string",
+                      "nullable": true
+                    },
+                    "documentation_url": {
+                      "type": "string",
+                      "nullable": true
+                    },
+                    "detail": {
+                      "type": "string",
+                      "nullable": true
+                    },
+                    "status": {
+                      "type": "integer"
+                    },
+                    "scimType": {
+                      "type": "string",
+                      "nullable": true
+                    },
+                    "schemas": {
+                      "type": "array",
+                      "items": {
+                        "type": "string"
+                      }
+                    }
+                  }
+                }
+              }
+            }
+          },
           "404": {
             "description": "Resource not found",
             "content": {
diff --git a/descriptions/ghec/dereferenced/ghec.2026-03-10.deref.yaml b/descriptions/ghec/dereferenced/ghec.2026-03-10.deref.yaml
index b5d687352..8c5610a53 100644
--- a/descriptions/ghec/dereferenced/ghec.2026-03-10.deref.yaml
+++ b/descriptions/ghec/dereferenced/ghec.2026-03-10.deref.yaml
@@ -28724,6 +28724,7 @@ paths:
                       override_budget_id: 2066deda-923f-43f9-88d2-62395a28c0cdd
                     has_next_page: false
                     total_count: 2
+        '400': *14
         '404': *6
         '403': *29
         '500': *37
diff --git a/descriptions/ghec/dereferenced/ghec.deref.json b/descriptions/ghec/dereferenced/ghec.deref.json
index 8f5902b4f..f250041dc 100644
--- a/descriptions/ghec/dereferenced/ghec.deref.json
+++ b/descriptions/ghec/dereferenced/ghec.deref.json
@@ -77384,6 +77384,66 @@
               }
             }
           },
+          "400": {
+            "description": "Bad Request",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "title": "Basic Error",
+                  "description": "Basic Error",
+                  "type": "object",
+                  "properties": {
+                    "message": {
+                      "type": "string"
+                    },
+                    "documentation_url": {
+                      "type": "string"
+                    },
+                    "url": {
+                      "type": "string"
+                    },
+                    "status": {
+                      "type": "string"
+                    }
+                  }
+                }
+              },
+              "application/scim+json": {
+                "schema": {
+                  "title": "Scim Error",
+                  "description": "Scim Error",
+                  "type": "object",
+                  "properties": {
+                    "message": {
+                      "type": "string",
+                      "nullable": true
+                    },
+                    "documentation_url": {
+                      "type": "string",
+                      "nullable": true
+                    },
+                    "detail": {
+                      "type": "string",
+                      "nullable": true
+                    },
+                    "status": {
+                      "type": "integer"
+                    },
+                    "scimType": {
+                      "type": "string",
+                      "nullable": true
+                    },
+                    "schemas": {
+                      "type": "array",
+                      "items": {
+                        "type": "string"
+                      }
+                    }
+                  }
+                }
+              }
+            }
+          },
           "404": {
             "description": "Resource not found",
             "content": {
diff --git a/descriptions/ghec/dereferenced/ghec.deref.yaml b/descriptions/ghec/dereferenced/ghec.deref.yaml
index ba8caba59..e25afa8ac 100644
--- a/descriptions/ghec/dereferenced/ghec.deref.yaml
+++ b/descriptions/ghec/dereferenced/ghec.deref.yaml
@@ -28967,6 +28967,7 @@ paths:
                       override_budget_id: 2066deda-923f-43f9-88d2-62395a28c0cdd
                     has_next_page: false
                     total_count: 2
+        '400': *14
         '404': *6
         '403': *29
         '500': *37
diff --git a/descriptions/ghec/ghec.2022-11-28.json b/descriptions/ghec/ghec.2022-11-28.json
index dcef3a4c5..f21d28cbe 100644
--- a/descriptions/ghec/ghec.2022-11-28.json
+++ b/descriptions/ghec/ghec.2022-11-28.json
@@ -19183,6 +19183,9 @@
           "200": {
             "$ref": "#/components/responses/get-budget-user-states"
           },
+          "400": {
+            "$ref": "#/components/responses/bad_request"
+          },
           "404": {
             "$ref": "#/components/responses/not_found"
           },
diff --git a/descriptions/ghec/ghec.2022-11-28.yaml b/descriptions/ghec/ghec.2022-11-28.yaml
index 8a7ac0228..fe139b5e0 100644
--- a/descriptions/ghec/ghec.2022-11-28.yaml
+++ b/descriptions/ghec/ghec.2022-11-28.yaml
@@ -14266,6 +14266,8 @@ paths:
       responses:
         '200':
           "$ref": "#/components/responses/get-budget-user-states"
+        '400':
+          "$ref": "#/components/responses/bad_request"
         '404':
           "$ref": "#/components/responses/not_found"
         '403':
diff --git a/descriptions/ghec/ghec.2026-03-10.json b/descriptions/ghec/ghec.2026-03-10.json
index 56a58bb4d..ef2559623 100644
--- a/descriptions/ghec/ghec.2026-03-10.json
+++ b/descriptions/ghec/ghec.2026-03-10.json
@@ -19183,6 +19183,9 @@
           "200": {
             "$ref": "#/components/responses/get-budget-user-states"
           },
+          "400": {
+            "$ref": "#/components/responses/bad_request"
+          },
           "404": {
             "$ref": "#/components/responses/not_found"
           },
diff --git a/descriptions/ghec/ghec.2026-03-10.yaml b/descriptions/ghec/ghec.2026-03-10.yaml
index 2b484443f..b6a79cb0c 100644
--- a/descriptions/ghec/ghec.2026-03-10.yaml
+++ b/descriptions/ghec/ghec.2026-03-10.yaml
@@ -14266,6 +14266,8 @@ paths:
       responses:
         '200':
           "$ref": "#/components/responses/get-budget-user-states"
+        '400':
+          "$ref": "#/components/responses/bad_request"
         '404':
           "$ref": "#/components/responses/not_found"
         '403':
diff --git a/descriptions/ghec/ghec.json b/descriptions/ghec/ghec.json
index 994c028f1..d3c971d58 100644
--- a/descriptions/ghec/ghec.json
+++ b/descriptions/ghec/ghec.json
@@ -19197,6 +19197,9 @@
           "200": {
             "$ref": "#/components/responses/get-budget-user-states"
           },
+          "400": {
+            "$ref": "#/components/responses/bad_request"
+          },
           "404": {
             "$ref": "#/components/responses/not_found"
           },
diff --git a/descriptions/ghec/ghec.yaml b/descriptions/ghec/ghec.yaml
index 73e228c8f..a0c7b5f17 100644
--- a/descriptions/ghec/ghec.yaml
+++ b/descriptions/ghec/ghec.yaml
@@ -14274,6 +14274,8 @@ paths:
       responses:
         '200':
           "$ref": "#/components/responses/get-budget-user-states"
+        '400':
+          "$ref": "#/components/responses/bad_request"
         '404':
           "$ref": "#/components/responses/not_found"
         '403':