The full STP Validation error - A field contains invalid data (such as letters in numeric or date field): The value specified for an item does not match the item type (value=”-xxx.xx”, item type = Decimal, uniqueID = http://www.sbr.gov.au/ato/payevntemp:EmployerReportableA) Hint: The Mininclusive constraints failed.
This error message usually occurs when you apply a manual adjustment and negate an amount from the employee, when they don't have an STP balance to negate. The error occurs because you cannot have a negative STP balance.
The following steps are required to resolve this issue.
Check the STP YTD and STP Payruns report
You will be able to see that under 1 of the categories, there will be a negative total. This is the category you will need to apply a positive to, then offset the amount back to 0.
Create a pay run
If the pay item that has the issue is an ETP pay item, you need to ensure that the pay run is for the exact same dates as the pay run with the issue (Pay period, Payment date, Super date must match).
If it's any other pay item, make the adjustment in the next pay run.
Add a line item
For the relevant employee, add the line item that has the issue with a positive amount (if there is a negative net, ensure you offset the amount with the overpayment loan pay item).
Once the line items are added, I recommend checking the STP YTD & STP Pay runs Report before publishing to ensure it is applying correctly.
Publish
When you publish it will merge the figures and correct STP YTD and remove the issue.