Hi Sagar,
I couldn't find the relationship entity for the date ZM_ZCD. I presume we can use BTDatesAllCust as this is a custom date profile.
Also, even it was present I would again get stuck at how to update the DATE_FROM field.
As we can maintain CRMST_DATE_BTIL which doesn't have the DATE_FROM value. I tried updating the TIMESTAMP_FROM / TIMEZON_FROM fields in the structure but still no luck.
Do you still have any pointers?
Thanks!
Prasanna