Please follow these few steps below:
Open FIS within the Synergy Client.
Select Admin,
Click Child Admin and select Deprived Areas.
Click the Green Plus to add postcodes and the Red Cross to remove postcodes.
On the postcode row, use the drop-down to select the associated weighting.
📌Note: Postcodes can also be inserted via a script. You would need to seek guidance from the support desk for this.