Row 1 Error – You can use the same determining factor class and class qualifier as often as necessary only with “Not Equal To” operator and with unique values

‘Row 1 Error – You can use the same determining factor class and class qualifier as often as necessary only with “Not Equal To” operator and with unique values’

If you get this error but you know that this is the first time you have created this tax condition then you have hit a bug!

There is an easy work around to this. If this happens, click the ‘Ignore Condition’ and then save the condition.
oracle R12 tax conditions row 1 error

Then navigate away from the page, click on the ‘Tax Zone Type’ for example and then click back to the ‘Tax Condition Sets’ and query back your condition.

Now remove the ‘Ignore Condition’ tick and save – things should save correctly now.