diff --git a/x-pack/plugins/case/common/api/cases/case.ts b/x-pack/plugins/case/common/api/cases/case.ts
index ffeecf27743f5..52e4a15a3f445 100644
--- a/x-pack/plugins/case/common/api/cases/case.ts
+++ b/x-pack/plugins/case/common/api/cases/case.ts
@@ -10,7 +10,7 @@ import { NumberFromString } from '../saved_object';
 import { UserRT } from '../user';
 import { CommentResponseRt } from './comment';
 import { CasesStatusResponseRt } from './status';
-import { CaseConnectorRt, ESCaseConnector } from '../connectors';
+import { CaseConnectorRt, ESCaseConnector, ConnectorPartialFieldsRt } from '../connectors';
 
 // eslint-disable-next-line @kbn/eslint/no-restricted-paths
 export { ActionTypeExecutorResult } from '../../../../actions/server/types';
@@ -133,7 +133,7 @@ export const ServiceConnectorCommentParamsRt = rt.type({
   updatedBy: rt.union([ServiceConnectorUserParams, rt.null]),
 });
 
-export const ServiceConnectorCaseParamsRt = rt.type({
+export const ServiceConnectorBasicCaseParamsRt = rt.type({
   comments: rt.union([rt.array(ServiceConnectorCommentParamsRt), rt.null]),
   createdAt: rt.string,
   createdBy: ServiceConnectorUserParams,
@@ -145,6 +145,11 @@ export const ServiceConnectorCaseParamsRt = rt.type({
   updatedBy: rt.union([ServiceConnectorUserParams, rt.null]),
 });
 
+export const ServiceConnectorCaseParamsRt = rt.intersection([
+  ServiceConnectorBasicCaseParamsRt,
+  ConnectorPartialFieldsRt,
+]);
+
 export const ServiceConnectorCaseResponseRt = rt.intersection([
   rt.type({
     title: rt.string,
diff --git a/x-pack/plugins/case/common/api/connectors/index.ts b/x-pack/plugins/case/common/api/connectors/index.ts
index 88d81eed2d87d..0019afe7c6b74 100644
--- a/x-pack/plugins/case/common/api/connectors/index.ts
+++ b/x-pack/plugins/case/common/api/connectors/index.ts
@@ -20,6 +20,12 @@ export const ConnectorFieldsRt = rt.union([
   rt.null,
 ]);
 
+export const ConnectorPartialFieldsRt = rt.partial({
+  ...JiraFieldsRT.props,
+  ...ResilientFieldsRT.props,
+  ...ServiceNowFieldsRT.props,
+});
+
 export enum ConnectorTypes {
   jira = '.jira',
   resilient = '.resilient',