HTTP Post using Input Data not working

[b.huber]

Im trying to do a POST Call (SOAP API) using a Session ID i received in a previous Node.

As you can see in "Result of Item 1 it displays the Session ID correct. But if i execute the Node this field is empty and the API throws an Error.

The session ID should be in the web:sessionId field. If i hardcode the Session ID in the body it works fine.

[MutedJam]

Hi @b.huber, welcome to the community!

I am sorry you’re having trouble. Is there a chance you’re passing on multiple items to your HTTP Request node ultimate sending the request? In this case the expression might resolve fine for your first item, but could fail for subsequent items.

If that’s not it, can you please confirm the exact n8n version you have in use as well as a workflow using which the problem can be reproduced?

Thank you!