DM extension custom entity and custom table Reuse mode in BP

Hello Guys, Following are the brief steps followed in video. Notes: Create Custom field for example: Official Legal Advisor in Legal Data Custom UIBB. Legal Advisor: ZZLEGADV 1. Create entity, attributes, Relationships, activation, adjustment, Generate dm specific structure, ZXX_S_BP_PP_ZLEGAL. 2. Genil component extensions. 3. Created form UIBB ZMDG_ZLEGAL_FORM. 4. Created entry in SM34, VC_MDG_BS_GENIL_C. 5. Added custom form UIBB inside OVP of Customer. 6. Added wiring for UIBB. 7. Remove unnessary buttons in UI. 8. Create custom handler class from super class of BP. 9. SORT_ENTITIES, READ_OBJECT_DATA, GET_OBJECT_DATA_BY_ENTITY, MAP_DATA_2STA, MAP_DATA_2API, SAVE_ADDITIONAL_OBJECT_DATA 10. Sort entities makes our handler class methods trigger for custom entity. 11. ZTMDG_BP2LEGADV - Table Created. 12. Extend MDG_BS_BP_S_ECC_EXTERN. Done. 13. MAP_DATA_2API - out is input is_data in SAVE_ADDITIONAL_OBJECT_DATA - SAP_WFRT while. 14. GET_OBJECT_DATA_BY_ENTITY - output is same as MAP_DATA_2STA input.