[Cerrado] Translating a plugin

Background of the issue:
I have a plugin called Product lead time which allows me to place a short message like "back in stock 10 oct 2025" on products that meet certain criteria and I'm trying to translate those messages. I went to "Theme and plugins localization" found the plugin and pressed scan for strings. It came back and said it found two strings which were added to table.

Symptoms:
The strings I'm looking for cannot be found in string translation.

Questions:
Which strings did it find and how do I find them?
What's my next step?