Custom List entity using REUSE mode in sap MDG-S?

[sadeek]

We have requirement to add Custom list entity using Reuse mode in MDG-S. we have the data mode extensions, genil Extensions and SMT mapping and brought Custom ENTITY in MDG UI. 

Issue is : - when we entered the data inside the custom entity UIBB. once Change request is Activated then data which we entered in the UIBB is getting Vanished and not getting updated in the Custom database table.

Kindly Help with Solution and Links.

Thanks in Advance

best Answer will be Rewarded.

[adityaIngale · Accepted solution]

For updating values from custom UIBB to the backend table, you need to write code in the custom handler class in methods MAP_DATA_2API and SAVE_ADDITIONAL_OBJECT_DATA. Where you should get data in the import parameter of method MAP_DATA_2API and pass to changing parameter CS_DATA_EXT. After in method SAVE_ADDITIONAL_OBJECT_DATA you will get CR data which you can update in your backend table. I would suggest to keep a debugger in these 2 methods and check if you are getting data in them.