SOAP HTTP AXIS receiver adapter - Service requires SSL mutual authentication

Hi,

we have eInvoice scenario to Financial organization. On their side is WS so we're using SOAP adapter with HTTP (Axis) protocol, Message protocol

Axis. After configuration lots of parameters on Module tab of adapter, we're getting message from WS - "Service requires SSL mutual authentication".

Note  Axis Adapter FAQ says

1. How can I configure my receiver channel to use SSL?

If the adapter engine is configured to use SSL, the Axis receiver adapter can use SSL automatically.

So question is how to check if AE is configured to use SSL? Is there any page to check it? BC installed SAP Crypto libs in kernel, since we are using

SAP PI 7.4. Is there mybe some parameter to specificaly tell Axis adapter to use SSL and HTTPS? Also, URL of WS starts with https://....

Thanks in advance

kr

mario