Skipping First Batch and invoicing Different batch material due to price variations.

Hi,

I was trying to do invoicing for a line item where the agreed selling price of the SKU is less than the cost price of the SKU batch code that the system is fetching as per FIFO. But i have an alternative batch of material with a price less than the previous batch matching my selling price considering margins and business. How to skip the initial batch and generate outbound delivery which consists of other batches.

NOTE: There is a customized condition set in our ERP where invoicing cannot be done if cost price is higher than selling price.

Please suggest.