0042·Invoice date is empty

What this means

Distinct from a badly formatted date — this is a null or blank value where a date is required.

Why it happens

• A null propagated from an unsaved draft.
• Date formatting threw and the field was submitted empty.
• The field was mapped from a nullable column with no fallback.

How to fix it

1. 1Set the date at document creation and treat it as non-nullable.
2. 2Fail submission when it is absent rather than sending an empty value.

Related errors

• 0113Invoice date is not in the correct format
• 0043Invoice date is later than the current date
• 0005Date is not in a valid format