When copy a lot, left the number empty
- Install stock_lot module
- Create a product
- Create a sequence and add this sequence to the "Lot Sequence" field.
- Create a lot with this product, this lot will have the Number: "1"
- Duplicate the lot, the new lot will have the Number: "1" too.
If we duplicate a lot with a product with a "Lot Sequence" the duplicated lot must follow the sequence. For example, if we duplicate a lot with the Number: "1", the duplicated lot will have the Number: "2".