form1022 是notification of changes in circumstances, 上面的解释说,use this form to notify the department of any changes in your circumstances that affect any answers on your application form.
form1023 是notification of incorrect answers, 解释说,you should use form 1023 if you wish to notify the department that you have supplied it with any incorrect information.
我自己考虑了一下,我自己条件并没有改变,只是当初误以为可以申请mechanical engineer才填了那个提名职业,所以应该是用 form 1023 notification of incorrect answers。但是又不是非常的确定,求解~~~