Supressing pop up messege of standard function module

Hi There,

I am a beginner in SAP ABAP,

I am developing a program to close the work items/ exceptions which we used to get in our sap inboxes.

For that I have written a code. And I am using a Standard Function Module to close all the work items.

Its working fine but to close every work items it gives a pop up while executing...

I want to suppress that pop up, as according to the requirement we don't need the pop-up to be appear.

I have used the addition of IN BACKGROUND TASK but its not updating the status of work items in the tables.

Please help out...

Thanks!