The date when the Invoice period for this Invoice line ends. Format ="YYYY-MM-DD"
cbc urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-22017-10-15| Identifier/Error message | Flag | 
|---|---|
| BR-30 If both Invoice line period start date (BT-134) and Invoice line period end date (BT-135) are given then the Invoice line period end date (BT-135) shall be later or equal to the Invoice line period start date (BT-134). | fatal | 
| BR-CO-20 If Invoice line period (BG-26) is used, the Invoice line period start date (BT-134) or the Invoice line period end date (BT-135) shall be filled, or both. | fatal | 
| PEPPOL-EN16931-R111 End date of line period MUST be within invoice period. | fatal | 
| PEPPOL-EN16931-F001 A date MUST be formatted YYYY-MM-DD. | fatal |