Amazon’s SP-API allows for requests to specify the granularity level at which the data is pulled. Specifically from their documentation: “asinGranularity - Data is available at different ASIN aggregation levels: PARENT, CHILD, SKU. Default: PARENT.”
It seems like Windsor currently allows the report to be report by ASIN but doesn’t allow for aggregation at the SKU level. If this functionality could be added it would be a huge help!