I see the same issue today.

Hello Adam,I have issue to access this message store viewer, previously it's working fine. Do you know anything changes of the authorization of this message store viewer?Thanks!Regards,Lucy

Hello Abdul Raheem,I have the same issue to access this message store viewer, aftter the pop up window, when I input my S-user/password, still not working, but previously it's working fine.Have you already solved your issue? If yes, could you share ...

Thanks a lot Samarjit! It's working fine now.

Hello Samarjit,   Thanks for your update! Could you please enclose the pdf file as attachment? so I can download it and use it in postman to simulate it in my iflow.   I tried to simulate the pdf reading like in your blog, not yet get succeed. Pl...