This support note applies to:
- AO Practice Manager (NZ)
- AO Practice Manager (AU)
- AE Practice Manager (NZ)
- AE Practice Manager (AU)
If negative number formats are incorrectly set in Windows, you may see the following error when adding a credit note/ a negative miscellaneous charge such as a discount or practice write off in MYOB Practice Manager.
Critical System Error
Input string was not in a correct format.
In Windows, open Control Panel.
Go to Clock, Language and Region > Region or Region and Language.
Click Additional settings. The Customize Format window appears.
From the Negative number format drop-down list, choose -1.1.
Click OK. The changes are saved.