Fine
hope these steps would help you resolve ths
–use a assign activity liket his
arr_datatable = {datatablvariable1, datatablevariabl2,datatablevariable3}
where arr_datatable is a varaible of type array of (system.data.datatable) where we can get this browse type
–use a build datatable activity and create a datatable with same structure and get the output with a variabble named finaldt
–now use a FOR EACH activity and pass the above variable as input
and change type argument as system.data.datatable in the property panel
–inside the loop use MERGE DATATABLE activity and mention like item in source property and destination property with finaldt
this will merge them to finaldt
Cheers @kavinnatarajan