Hi @Oskar Klingberg,
Thank you for providing the detailed information. I understand that the output field type showing as "number". After reviewing the custom extraction model, it is not possible to get the "Currency" subtype for the Money/Value fields.
We understand that this may be disappointing, and we apologize for any inconvenience this may have caused. However, I encourage you to submit a feature request for "Currency" subtype through the Azure Feedback Forum: Post idea · Community (azure.com).
I hope you understand! Thank you.