The seller can send a product with multiple sku variations. On the marketplace's Received Skus module these skus will appear separately to be approved. The merchant can manually approve these skus.

The scenario happening is that some of the skus are being created duplicated on the marketplace's catalog due to a fail on the catalog communication.

Approve skus on the Received Skus pending area from the same product in short interval of time. Check in the catalog if some sku was created duplicated

Approve slowly the skus from the same product to avoid errors on the catalog side.