Can a container value be edited?
I have workflows that are in error because for some reason an event that was created did not have a parameter set. That parameter would have been used in a branch expression, and because it does not exist, the branch has no correct outcome and results in the error.
Is there a way to set the value of the container value? That way when I restart the workflow it should continue on it's way.
Yes, you can change the container values. I am assuming the element is at Workflow level since you mention it is being used in a branch expression.
1)Display the WF (WI type flowitem) using transaction SWIA.
2)Select the Menu option Go to -> Technical WI display.
3)Then Select the Menu option Edit -> Change.
You should see a Change Container button.
You can also change the container values at WI level using the same procedure for dialog WIs. For Background WIs, step 2 is not applicable.