diff --git a/doc/service-agent-api.md b/doc/service-agent-api.md
index 3486bec..16938a9 100644
--- a/doc/service-agent-api.md
+++ b/doc/service-agent-api.md
@@ -149,16 +149,21 @@ By sending this message, a Verifiable Credential is effectively issued and sent
 This message could be sent as a response to a Credential Request. In such case, `threadId` is used to identify credential details. But it can also start a new Credential Issuance flow, and specify
 
 Parameters:
-
 - (optional) Credential Definition ID
+- (optional) Revocation Definition ID
+- (optional) Revocation Index
 - (optional) Claims
 
+> **Note:** When using revocation parameters (`revocationDefinitionId` and `revocationRegistryIndex`), it is essential to ensure the `id` was preserved from the time it was generated with the credential. The `revocationRegistryIndex` serves as a reference to the specific credential in the revocation registry.  
+
 ```json
 {
   ...
   "type": "credential-issuance",
   "credentialDefinitionId": "id",
- "claims": [{ "name": "claim-name", "mimeType": "mime-type", "value": "claim-value" }, ...]
+  "revocationDefinitionId": "id",
+  "revocationRegistryIndex": 1,
+  "claims": [{ "name": "claim-name", "mimeType": "mime-type", "value": "claim-value" }, ...]
 }
 ```
 
diff --git a/packages/model/src/messages/CredentialRequestMessage.ts b/packages/model/src/messages/CredentialRequestMessage.ts
index bd07194..295a311 100644
--- a/packages/model/src/messages/CredentialRequestMessage.ts
+++ b/packages/model/src/messages/CredentialRequestMessage.ts
@@ -7,8 +7,6 @@ import { MessageType } from './MessageType'
 
 export interface CredentialRequestMessageOptions extends BaseMessageOptions {
   credentialDefinitionId: string
-  revocationDefinitionId?: string
-  revocationRegistryIndex?: number
   claims: ClaimOptions[]
 }
 
@@ -22,8 +20,6 @@ export class CredentialRequestMessage extends BaseMessage {
       this.timestamp = options.timestamp ?? new Date()
       this.connectionId = options.connectionId
       this.credentialDefinitionId = options.credentialDefinitionId
-      this.revocationDefinitionId = options.revocationDefinitionId
-      this.revocationRegistryIndex = options.revocationRegistryIndex
       this.claims = options.claims.map(item => new Claim(item))
     }
   }
@@ -35,16 +31,6 @@ export class CredentialRequestMessage extends BaseMessage {
   @IsString()
   public credentialDefinitionId!: string
 
-  @Expose()
-  @IsString()
-  @IsOptional()
-  public revocationDefinitionId?: string
-
-  @Expose()
-  @IsNumber()
-  @IsOptional()
-  public revocationRegistryIndex?: number
-
   @Expose()
   @Type(() => Claim)
   @IsArray()