45xxx · Reported transaction
CESOP error 45080
“Same transaction date provided more than once”
Caught before you file
What it means
The same kind of date appears more than once on one transaction. Each transactionDateType is given at most once per transaction.
Why files get it
- Dates from two source fields both mapped to the same type.
How to fix it
- Keep one DateTime per transactionDateType on each transaction.
Check a file for 45080 before you submit
The free validator runs the CESOP business rules against your file and names the error each finding would become — 45080 included — so the Validation Result is not where you first hear about it.
The file is parsed in your browser tab. No upload, no account.
Source: the error catalogue in the Payment Data XSD User Guide — CESOP, v4.40 (DG TAXUD), §2.2.3.18. The explanation is ours; it describes the file format and is not tax advice.