BR-DE-TMP-32: Missing delivery or performance date
Severity: info
What it means
The invoice should state the date of supply via Actual delivery date (BT-72), Invoicing period (BG-14), or an Invoice line period (BG-26) on every invoice line.
Most common cause
None of these three date fields were populated in the source system export.
How to fix it
Add BT-72 (actual delivery date), or an invoicing period, or per-line invoice line periods, depending on what your ERP has available.