> [!CAUTION]
> **Caution:** This documentation is for Google Ads API **v23** . The latest active version is [**v26**](https://developers.google.com/google-ads/api/reference/rpc/latest/Invoice.InvalidActivitySummary).

Details about the invalid activity for the invoice that contain additional details about invoice against which corrections are made.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v23/resources/invoice.proto)

| Fields ||
|---|---|
| ## `amount_micros` | `int64` Output only. Invalid activity amount in micros. |
| ## `original_account_budget_name` | `string` Output only. Original account budget name related to this invalid activity credit. |
| ## `original_invoice_id` | `string` Output only. Original invoice number related to this invalid activity credit. |
| ## `original_month_of_service` | `MonthOfYear` Output only. Original month of service related to this invalid activity credit. |
| ## `original_purchase_order_number` | `string` Output only. Original purchase order number related to this invalid activity credit. |
| ## `original_year_of_service` | `string` Output only. Original year of service related to this invalid activity credit. |