I created a custom module(like account payable) and added in main menu as reference.so the created custom module is visible when i login ax from user which has system administrator role.But it is not visible when logging ax from user which has only system user role. please suggest.
System user role will not have access all the modules explicitly. You can expect some basic functionalities with System User role.
I suggest you to assign the new menu item (for this new module) to a role and test.
thanks a lot.