BU Grade rates to be autopopulated on Minimum and maximum salary fields on job requisition page

Hi Team,

All job have grade rates mapped to it under workstructures and there are different grade rate values for each legislation. Jobs are defined under common set, here we have trying to autopopulate BU specific grade values on to minimum and maximum salary fields on the job requisition page which will also be BU specific ( i.e when creating US specific job requisition, min n max salary fields should autopopulate respective BU rates only on the requisition). Using autocomplete we could able to fetch the grade rates but those are not BU/country specific.

Please find the attached screenshots and let us know the workaround.