How can i createAttriuteMap to fetch field value from Opportunity to Sales Order

[Ashif Malayil]

Please find the below attached json,

I want to map some field values from Opportunity to Dispatch. How can i achieve this?

[esforim]

Sorry I can't help if you go beyond my level (API/JSON/Coding).

I can slightly assist with Formula if I have done something similar only. Good luck! If you have manage to get thing to works, share result for the future reader.