I am trying to use the entity: "Quote Line" in a workflow that is built on another custom entity. if a certain condition fulfilled on the new custom entity, I am trying to update the "Quote Line" record.

I have a N:1 relation between the custom entity and the "Quote Line" entity. the "Quote Line" entity is not appearing in the related entities of the update record.

I noticed that the "Quote Line" entity have the "Business process flows (fields will be created) "  attribute is unchecked. Does it have any relation to the problem?

Please guide me to fix this issue