Fix "Panel is already in Box" errors and move panels between boxes

Learn why a panel can sit in only one box, what the error means, and how to move a panel to a different box.

1. A panel can be in exactly one box.

   ✓ Verificato nel prodotto il 19 ottobre 2026

2. Scanning or adding a panel that is already packed shows an error naming the box it is in ('Panel <label> is already in <box name>' — or 'already in this box' if it is the same one).

   ✓ Verificato nel prodotto il 19 ottobre 2026

3. The manual (bulk) panel picker does not offer panels that are already in a box, so a bulk add takes only free panels.

   ✓ Verificato nel prodotto il 19 ottobre 2026

4. To move a panel between boxes, remove it from its current box first (minus icon on the panel inside the box, with confirmation), then add it to the new box.

   ✓ Verificato nel prodotto il 19 ottobre 2026

5. Removal also clears the panel's packaging record (date, user, station), so the new add creates a fresh record.

   ✓ Verificato nel prodotto il 19 ottobre 2026

6. Adding a panel to a CLOSED box is allowed but prompts 'This box is already closed, are you sure?' — closing is a labelling convenience, not a lock.

   ✓ Verificato nel prodotto il 19 ottobre 2026

7. Printing the box label is what closes a box ('Print label & close the box').

   ✓ Verificato nel prodotto il 19 ottobre 2026

8. A box does not need to be closed to be loaded on the Shipment page, so clients can ship boxes they never printed labels for — if they insist labels are mandatory, that is process discipline on their side, not enforced by the product.

   ✓ Verificato nel prodotto il 19 ottobre 2026