The date on which an order is executed; in the FPR monthly cycle this is T, with the order at T-4 and the confirmation and final NAV at T+3. In message 15 the trade date sits on the corporate action itself (investment.corporateAction).
Source: glossary of the VB-PUO manual (8.1 and 8.2), explanation by WTP Data Lab
Attribution. Source: SIVI – VB-PUO Standard. Schemas, attribute descriptions and code lists are taken unchanged from the VB-PUO Standard (owned by the Pensioenfederatie, managed by SIVI) and shown with their release and version. Explanations, examples, error descriptions and translations are by WTP Data Lab and are not part of the standard. GitHub Stichting-SIVI/VBPUOdsk · Manual · sivi.org
