Multiple idocs to be sent at a time

Hi Experts,

Please find below requirement and looking for your valuable suggestion

Requirement :- We are doing a migration project from sap pi to snaplogic where there is an integration between snaplogic to sap. The requirement is from snaplogic we have to send multiple idocs at a time but when we check in sap we could see it reached there one after another means after 1st idoc processed successfully in sap then the second reached and so on. Similar scenario when we validate in sap pi all 10 idocs reached there at a single timestamp.

Implementation - In snaplogic we used sap idoc write to send idocs and before that used mapper to form the idoc structure.

Please suggest how we implement it better to pass all idocs at sametime to sap.