The default option for deposits is for the deposit to be invested in line with the model allocation, for withdrawals the default is disinvest proportionately.
However, you can also use the ‘align to target’ functionality, which naturally rebalances your model portfolios whenever money flows in or out of the model portfolio. It does this by prioritising purchases in underweight assets and sales of overweight assets, reducing unnecessary trades in future and helping to reduce risk by ensuring your clients' portfolios stay aligned to your original asset allocation.