Transition of P-Asserted-Identity

Hi all,

For a certain gateway I’d need to include the P-Asserted-Identity header.
How can I pass this through?

I have tried to add these to the ‘Transit headers from termination’, however, though I can see the PAI header being present on Leg A, it’s empty on Leg B.
image

You should set Transit headers from termination for both gateways - origination and termination