For SG trades, your online orders with payment mode of Cash or SRS or CPF will be rejected with the message 2018Invalid GSA Linkage 2019. You can submit SG orders via POEMS once your account GSA linkage has been approved by CDP. For foreign market trades, you can submit online orders prior to GSA linkage approval by CDP, provided you have completed Risk Warning Statement (RWS) and Customer Account Review (CAR) & Customer Knowledge Assessment (CKA) assessment.