Executing SSIS Package with SQL Authentication

This is what I did, maybe it can help someone.

First step, I created an SQL Authentication login as sysadmin and I allowed this login to impersonate other logins.

And then, I inpersonate a Windows Authentication login that is sysadmin too before calling SSIS packages. To execute scripts as another login, I used TSQL EXECUTE AS. (check the example below)

For instance: server\winuser with Windows Authentication as sysadmin, and a SQL Authentication login sqlauthuser as sysadmin too.

Enable the "Inpersonate Any Login" for sqlauthuser. Login (or use a connection string to connect) as sqlauthuser then impersonate server\winuser to be able to call SSIS packages or procedures:

EXECUTE AS LOGIN = 'server\winuser';
-- call ssis packages
-- call procedures that uses ssis packages

Reference: https://docs.microsoft.com/en-us/sql/t-sql/statements/execute-as-transact-sql?view=sql-server-ver15