How can auto populate INSEE PCS job code into position DFF

Summary:

Hi experts,

I have a requirement to auto-populate the INSEE PCS job code into the DFF field while creating a new position.

When creating a new position and providing the job name the INSEE PCS job code information automatically populates into the position DFF field.

Lookup code: HRX_FR_PCS_CODE

Can someone assist me with how I can do this?

Thank you in advance :)