Comment 2 for bug 706279

Hello Vadim,

You are chaining the calculated amount of tax and total on voucher. So we can not change it manually. We can put it readonly on these two fields.
So when you try to validate voucher it raise error for non-balanced entry.

And for invoices we can not change the tax amount on it because its readonly for user.

So i agree with you and we will try to fix it in next version.

Thanks,
mra