SAP Message WC131 - No EAN maintained for set component & in sales unit & to date &

Diagnosis A regular change or a change with a future validity date has resultedin the EAN for this material in this sales unit being deleted on dateV3. either that or the ean was not maintained when the sales unit wasmaintained. System Response The record could not be prepared for POS outbound. Procedure Maintain the EAN for the material &V1& for the salesunit &V2&.