Watson Assistant: Context variable in slot is not being updated

Question

I'm currently working with some required slots in Watson Assistant, but I have a problem that I don't understand. When the user enters the node with the slot the first time, the variable is updated with the corresponding value, but the second time I try to enter the node (without entering the entity), it ignores the slot as if the entity had been entered. I know that the context variable is keeping the original value, but should not verify that the entity exists instead of the variable?. Are there some best practices to clean this kind of context variables (either in the UI tool or the backend)?

Answer 1

A context variable can be used to store values across dialog steps. You determine when it is set and when it is cleared. You can clear the context variable by either

• setting its value to null or
• removing the variable .

Usage depends on your design and flow.