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Sirisha NSirisha N 

Error which creating External Service - "An error was encountered while trying to retrieve the service schema."

Configure External ServiceNamed CredentialI am unable to create an External Service, my aim is to download the Swagger.json for the REST API/ Enpoints for the CRUD operation on the custom objects that I have created on Salesforce.

VinayVinay (Salesforce Developers) 
Hi Sirisha,

External Services only support Swagger/OpenAPI 2.0,  Can you check?

Review below link for more details.

https://help.salesforce.com/articleView?id=external_services_schema.htm&type=5 (https://help.salesforce.com/articleView?id=external_services_schema.htm&type=5)

Vinay Kumar