I do not have the Portfolio (in header) > Administration > Portfolio Hierarchy Configuration opt.

[Rolando Sibilia]

I do not have the Portfolio (in header) >  Administration >  Portfolio Hierarchy Configuration option

[Amirul Ikhwan Omar]

Are you able to access link below directly?

yourjiraurl/secure/PortfolioHierarchy.jspa

Do you able to see Portfolio hierarchy configuration sidebar from Administration > Add-ons page.

One thing to check, If any module from Portfolio for JIRA plugin is disable

[Rolando Sibilia]

I checked with my support team.
I do not have privileges for this settings.

Thanks you, anyway