To change the AutoPay linked to an SIP:
1. Go to 'SIPs'.
2. Select the SIP you wish to update.
3. Click 'Change AutoPay' next to the SIP.
4. Choose the approved AutoPay.
Note: You need at least 2 active AutoPays from different banks. Update your bank and AutoPay details in the 'Bank and AutoPay' section if needed.