You say ‘From’. This means you are CONSUMING (read: Using) the other rest service. If other people connect to you, you have to set up a PUBLISHING rest service.
So in the case of consuming another Rest service, you can simply create a microflow and add a ‘Rest call’ activity to the flow. Open the configuration of the activity and on the second tab (from the top of my mind), you can add header information by key/value-pair combinations.
In regard to your current error. You have to add a parameter (yellow triangle) to the microflow to have a parameter be passed on to the microflow logic.
Add a comment to this answer if you have any further questions! :)
Hey William,
What Sander said is correct,
That is, if you want to import external data from another system, you have to create a consumed REST service..
And for you current problem, your microflow is asking for a parameter ‘MessageID’, So in the microflow, add the parameter, set it to integer/decimal and name it MessageID, this way it will appear in your parameter field.
Hope it helps!
The image below if of the system, in which I want to post things from other app…
The image below if from the system, from where I need to post the information..
Just let me know.. if you have any confusion..