AJO - Unable to access Lookup Schema fields in Unitary Events Journey

[Rohan0794]

I get this error when I try to access Lookup schema fields in Condition activity of a journey:

"message":"The provided merge policy is not found or not available for lookup. Provide a valid merge policy or try again after some time.","statusCode":422.

I have created a custom XDM class for Lookup Schema and have linked it to an XDM Experience Event Schema.
Able to access the lookup fields during Event configuration but the above error comes up when trying to run in Test mode.

[dugganab · Accepted solution]

It looks like the merge policy for the look up schema is not created when the lookup schema was created. Kindly verify this by performing the below call and if it's missing, you may have to get the same created.

POST /access/entities

 Ref - https://experienceleague.adobe.com/docs/experience-platform/profile/api/entities.html