Hello @whg,
- Generally you don’t have to set that if you’re using Standardized Vocabularies downloaded from Athena, CONCEPT_ANCESTOR is pre-built in this case. If you’re building your own vocabularies to extend the standard ones, then min/max levels of separation is set to the the length of shortest/longest chain of relationships between two concepts found in CONCEPT_RELATIONSHIP table.
- There was a similar question on the forum answered with an example which you might find helpful.