> [!CAUTION]
> **Caution:** This documentation is for Google Ads API **v24** . The latest active version is [**v26**](https://developers.google.com/google-ads/api/reference/rpc/latest/MerchantCenterErrorEnum.MerchantCenterError).

Enum describing Merchant Center errors.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v24/errors/merchant_center_error.proto)

| Enums ||
|---|---|
| ## `CUSTOMER_NOT_ALLOWED_FOR_SHOPPING_PERFORMANCE_MAX` | Customer not allowlisted for Shopping in Performance Max Campaign. |
| ## `MERCHANT_ID_CANNOT_BE_ACCESSED` | Merchant ID is either not found or not linked to the Google Ads customer. |
| ## `UNKNOWN` | The received error code is not known in this version. |
| ## `UNSPECIFIED` | Enum unspecified. |