That was interesting, to say the least. I did, in fact, find the old data in the database.

However, this situation was a bit different, as the business was sold and the current owner was adding their code to the mod. That was in addition to the upgrade from 2.2.0 to 2.2.2 in the midst of everything else.

The SDK was one step newer as well, so I set it correctly.

The only problem now (minor at best) is that orders processed under the previous owner throw an error when viewing details or using Edit Orders due to the company changing hands.

Thanks for pointing me in the right direction. The docs showed no search results for Card nonce not found in this application or any variance of that search string.