This operation may be partially successful. Please check the status. Reason: [Item(s) ineligible from being inbounded, with reason: ITEM_EXCLUDED_FROM_COMMINGLING_FOR_EXISTING_MAP. Corresponding items for the error: [FNSKU:, MSKU:]]
This error message indicates that the MSKU being replenished is linked to the NO_LABEL type, but Amazon is no longer allowing the item to be sent as NO_LABEL.
Not all products are eligible for Stickerless Commingled Inventory. Products in grocery, health and beauty, and media must always be labeled. Amazon is always evaluating categories and products and may change product eligibility at any time.
After creating a new MSKU for this product with the condition of selecting the Amazon barcoding option instead of manufacturer barcoding option,  you are able to add any batch and ship it to Amazon Fulfillment Centers.
To solve this issue, add the item to the FBA Shipment Seller Central. After the message "This product is not eligible for stickerless, commingling. This product requires labeling to be received at our fulfillment centers.", select "I agree to apply labels to these products.".
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Using FBA virtual tracking