# Check if customer usage charge group category summary information exists Count usage quantities and cost grouped by charge group category id Endpoint: HEAD /customer-usage-charge-group-category-summaries Version: 1.43 Security: bearerAuth ## Query parameters: - `customerId` (string, required) Required filter by customer Example: "0" - `billRunId` (string) Filter by bill run - by default we return the open bill run summary information if this is omitted Example: "0" - `chargeGroupCategoryId` (string) Filter by charge group category identifier Example: "0" - `chargeGroupCategoryName` (string) Filter by charge group category name Example: "xyz | in:x,y | like:xyz" - `chargingUnitType` (string) Filter by charge unit type Example: "xyz | in:x,y | like:xyz" ## Response 200 fields ## Response 400 fields ## Response 401 fields ## Response 403 fields ## Response 404 fields