What does it mean by release status cancel and action cancel in Supplies and demand table?

Summary:

Content (required):

We have created a work order which is in unreleased state, after running the collection, when the plan is run.

The work order is shown in the supplies and demand table but it is not creating the planned orders for child component items.

After observing what we found is the release status of the work order is cancel and action is cancel.

What does these cancel status indicate?

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