If you get your Master’s degree for a certain skill , but it end up there is a long gap after your bachelor’s degree .
Your assessing body deemed you skilled for that particular skill at the date of post graduate completion , you can only claim employment experience points after your assessing body deemed skilled date.
Counting experience before your post graduate degree will not help you but lead to rejection.
For example if you have a Bachelor’s degree with Civil Engineering skill
And after 5 years you have completed
Master degree in Structural Engineering
There are two occupational codes you can apply here , but will differ in employment skills points , you can be a Civil Engineer all throughout but can only claim Structural Engineer skills after your Masters degree completion date and or your Assessors deemed skilled date mo in this case by EA.