Items and variations API
Items api can be used to update items and variations data in addition to the FTPS ingestion and HTTPS catalog uploads. While FTPS ingestion and HTTPS catalog uploads use a CSV file format to upload data, the items API uses JSON-formatted HTTP requests bodies.
Endpoints mentioned in this section are asynchronous, meaning that changes are not applied instantly after processing the request and receiving the response, but may take some time. In the response a task ID will be returned, which can be used to retrieve information about task's status via Retrieve By Specific Task ID.
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This is a recommended approach to do regular catalog updates.