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## API Updates for November 16, 2023

**API**

Added concurrency limits to the following endpoints:

* [Customer Groups](/developer/api-reference/rest/admin/management/customers/v2/customer-groups/get-customer-groups)

* [Custom Fields](/developer/api-reference/rest/admin/catalog/products/custom-fields)

* [Categories](/developer/api-reference/rest/admin/catalog/categories)

* Promotions