Your Merchant Center account and your use of the Merchant API are subject to
specific operational quotas and resource limits. Understanding these boundaries
ensures efficient account management and seamless API integration.

## Understanding Quotas and Limits

While both terms refer to system constraints, they govern different aspects of
your Merchant Center operations.

> [!IMPORTANT]
> **Important:** Quotas and Merchant Center limits are subject to change, reduction, or elimination at any time without prior notice.

### Quotas

Quotas determine the allowable volume and rate of API requests you can make.
They are organized into quota groups, which specify:

- daily limits (`quotaLimit`)
- per-minute rate limits (`quotaMinuteLimit`)

Depending on the service, a quota group might contain a single, specific
method, or a bundle of related methods. The quota for a given group is shared
among all API methods assigned to it.

For more information, see
[Quotas](https://developers.google.com/merchant/api/guides/quotas-limits/quotas).

### Merchant Center limits

Merchant Center limits define the maximum capacity for resources that you
can store or manage within your Merchant Center account. These limits govern
key aspects of your account, such as:

- number of products
- number of sub-accounts
- number of data sources
- other settings.

For example, the maximum number of unique products that a single account can
have.

For more information, see
[Merchant Center limits](https://developers.google.com/merchant/api/guides/quotas-limits/limits).