Hello,
A report that would be useful to calculate WIP would be an 'Outstanding Orders Report' by job number. I was able to create an Outstanding order report by Supplier, including the job number for each order and saved it as a Custom Report, however we need the report to display by job number as the report driver, and list all suppliers for that given job number.
If other businesses agree this report would be useful, please Like/Agree with this post, and hopefully MYOB will add this in future updates.
"Outstanding Orders Report by Job Number"