WC1 API supports batch screening.The Features tab at any Group summary page displays the Batch Screening settings.You can toggle ON/OFF batch screening at Group level depending on your organisations requirements.If you are using Batch Screening, you must Add Batch Names. Click Add Batch Names to display the Batch Names section.
Attached the screenshot for your reference.
Hope this will help for you.
Add more, I mean can we do multi name check in calling WC1 API? Can we create a case which contain multiple names' screening results? 'Cause we have to retrieve several names from a transaction to do the transaction's names checking by calling WC1 API web service with several names for screening within one call.
Yes you can create a case which contain multiple names' screening results.After creation of any case you can screen that case.Screening the case is the ability to retrieve multiple results from the World-Check database related to that case.