Regarding Canadian Work experience Job Category(B to A)

[Praveench]

Hello.

I am currently living in Toronto on Open Work Permit. At present, I am working in a Call centre from the past 9 months which is coming under the NOC B category and I am planning to switch to a new job soon(in 2 weeks) which is coming under NOC A category.

While applying for my PR will it affect my application?
Do I need to stay under the same category job for 1 year?

Thanks in Advance...