Your customer has two pay components, with IDs SALARY_US and SALARY_UK.

Create two custom columns and map each to the pay components Use a third custom column to display whichever is non zero

Create two different templates and use eligibility rules to ensure employees appear on the correct one

Create a pay component group that includes both pay components and use that for the planning

Ensure the Used for Comp Planning flag of the pay components is set to Comp and do NOT map to a specific pay component ID in the worksheet