Hi
The error that you have received seems to indicate to me that you have set a limit in the payroll catergory and it has been reached
Revisit the payroll catergory you set up and look at the limit section
I have attached a file so you can see where it is in the deduction catergory
But to address your questions
1 Set up deduction foe super salary sacrifice
enter the amount to deduct in the first section and you can either put no limit in the second or you can calculate the ATO cut off and enter that
You need to include this in the employees card also (this can be done through the employee tab on the deduction itself (top left hand corner send along
2 you can link the salary sacrifice to the super liability account - this accumulates just as SGC does - you don't actually pay it each pay run just when you pay your super either monthly or quarterly with your SGC - but it is reported seperately as sal sacrifice ( you might like to set up a seperate sal sac liability account just for the sal sac)
3 Do you pay through MYOB or do you use a clearing house?
I only use a clearing house so just report the sal sac seperately in the appropriate column when i send my report. That is why i suggest a seperate liability account but MYOB reporting should be able to identify the different types of super paymentsto be made. I can't help with MYOB super payments and how they work though sorry
Hope this helps some
Lisa