Update Attribute Value for Customer Account in Oracle Apps R12

Hello Everyone,

I have created DFF under "customer Information" and now i want to update value of that DFF for all customers using API. I am working on Oracle Application 12.1.1. I used below API to update the attribute values,

HZ_CUST_ACCOUNT_V2PUB.UPDATE_CUST_ACCOUNT(p_init_msg_list         => FND_API.G_TRUE,

                                          p_cust_account_rec      => p_cust_account_rec,

                                          p_object_version_number => p_object_version_number,

                                          x_return_status         => x_return_status,

                                          x_msg_count             => x_msg_count,

                                          x_msg_data              => x_msg_data

                                         );

Value is getting updated at HZ_CUST_ACCOUNTS table but after executing this API i am not able to pull the Customer record from front end. Can anyone please guide me if i am using wrong API.