Development Completed :- 
New Column as 'ETADate - DATETIME' Should be added in CF_WEB_ORDERDETAILS in SP and API ,
The Existing ETA Column is VARCHAR. Values from ETA should be converted to Date format and updated in new column ‘ETADate’ in CF_WEB_ORDERDETAILS.
Fetched the ETADate in Get Web Order Details in SP and API .
Changed the Order status as Order Confirmed for S089-250627-25908,S169-250628-25959,S069-250628-26002,S110-250629-26079,S157-250629-26083 in PROD.