Question on how to update changes in UME from SAP ECC

Hello All,

I need some input on how to handle the below requirement we have. We do not have EP - Portal on our java stack we have Biller Direct application running on it. So now we need a way when a customer data gets changed in SAP ECC customer profile this change should also be done on UME to the same customer account.

I know that we need a portal application that will trigger the JCO call and then update changes from ECC to UME. However as we do not have Portal so i cannot create and deploy a portal application and use it through IView. So is there any other way to handle this connection form ECC to UME.

Can a User exit in ECC FM can talk to UME??

Please update me for any possible solution for this scenario.

Thanks