Question

How to confirm if the training results were used during the invoice recognition?

Answer

The mentioned information can be detected in the processing logs: 

-1    14    2/7/2022 12:38:51 AM    Document 1: Page 1: Matching the specialized FlexiLayout for the Vendor "S-1259".
-1    15    2/7/2022 12:38:51 AM    Document 1: Page 1: FlexiLayouts that can be used for matching  (first match will be chosen):

String in bold informs that the trained layout was used.