Hi Amitash
In my opinion, user exit wil be an easier approach here
You can assign Event 05 to your DMEE format in OBPM1 under Event Modules
Copy the Sample FM FI_PAYMEDIUM_DMEE_20 to ZFI_PAYMEDIUM_DMEE_20 and write your code in it to populate one of the reference fields in FPAYHX structure with the Chinese language Name
After that, just map this field in your DME tree
We followed this approach for populating EMAIL ID
It would have been better if you had shared the approach you had in mind with the community for the benefit of all
Br. Ajay M