You create in POS a mixed retail transaction/ticket, which means, a transaction that includes lines with both positive (Sales) and negative (Returns) quantities.

Then, only one CFDI document is generated. Depending on the total transaction amount sign, it can be a document for sales or a document for returns.

All transactions are included in just one Global CFDI document from Retail Headquarters.

It should be desirable to split them and create: 1 Global CFDI for sales and 1 Global CFDI for returns.


***See as reference: Issue 303915