Update Product Categories

PATCH /wp-json/content-api/v1/product/categories/

Updates categories assigned to a specific product by adding new categories while preserving existing ones.

Authentication

This endpoint requires a Bearer token in the Authorization header. To authenticate:

1. Go to Content API > Settings in your WordPress admin panel.
2. Set a secure token in the “Token” field and save it.
3. Include the token in your request header as follows:

Authorization: Bearer <your-token-here>

Replace <your-token-here> with the token you configured.

Parameters

Name	Type	Description	Required
product_id	integer	Product ID	Yes (or SKU)
sku	string	Product SKU	Yes (or product_id)
categories	array	Array of category IDs to assign	Yes

Example Request

{
  "product_id": 123,
  "categories": [15, 16]
}

Example Response

{
  "success": true,
  "product_id": 123,
  "assigned_category_ids": [15, 16]
}

Possible Errors

Code	Message	Description	HTTP Status
not_authorized	Not Authorized	The provided Bearer token is invalid or does not match the configured token.	401
missing_identifier	Product ID or SKU is required	Neither product_id nor sku was provided.	400
product_id_invalid	Product ID is invalid	The provided product_id is not a valid number.	400
sku_invalid	SKU is invalid	The provided sku contains invalid characters.	400
conflicting_identifiers	Both Product ID and SKU are provided. Please provide only one.	Both product_id and sku were provided.	400
product_not_found	Product not found	The specified product does not exist.	404
invalid_input	Categories empty	The categories array is empty.	400
category_not_found	Category ID [id] does not exist	One or more provided category IDs do not exist.	404