diff --git a/src/main/java/uk/gov/hmcts/reform/sscs/ccd/domain/DocumentTabChoice.java b/src/main/java/uk/gov/hmcts/reform/sscs/ccd/domain/DocumentTabChoice.java
new file mode 100644
index 000000000..c89a2bcd1
--- /dev/null
+++ b/src/main/java/uk/gov/hmcts/reform/sscs/ccd/domain/DocumentTabChoice.java
@@ -0,0 +1,22 @@
+package uk.gov.hmcts.reform.sscs.ccd.domain;
+
+import com.fasterxml.jackson.annotation.JsonValue;
+import lombok.Getter;
+
+@Getter
+public enum DocumentTabChoice {
+    REGULAR("document"),
+    INTERNAL("internalDocument");
+
+    private final String value;
+
+    DocumentTabChoice(String value) {
+        this.value = value;
+    }
+
+    @Override
+    @JsonValue
+    public String toString() {
+        return value;
+    }
+}
diff --git a/src/main/java/uk/gov/hmcts/reform/sscs/ccd/domain/ScannedDocumentDetails.java b/src/main/java/uk/gov/hmcts/reform/sscs/ccd/domain/ScannedDocumentDetails.java
index bd34a324f..d076e9775 100644
--- a/src/main/java/uk/gov/hmcts/reform/sscs/ccd/domain/ScannedDocumentDetails.java
+++ b/src/main/java/uk/gov/hmcts/reform/sscs/ccd/domain/ScannedDocumentDetails.java
@@ -26,6 +26,8 @@ public class ScannedDocumentDetails {
     private String includeInBundle;
     private String originalSenderOtherPartyId;
     private String originalSenderOtherPartyName;
+    @JsonInclude(JsonInclude.Include.NON_NULL)
+    private DocumentTabChoice documentTabChoice;
 
     @JsonCreator
     public ScannedDocumentDetails(@JsonProperty("type") String type,
@@ -38,7 +40,8 @@ public ScannedDocumentDetails(@JsonProperty("type") String type,
                                   @JsonProperty("subtype") String subtype,
                                   @JsonProperty("includeInBundle") String includeInBundle,
                                   @JsonProperty("originalSenderOtherPartyId") String originalSenderOtherPartyId,
-                                  @JsonProperty("originalSenderOtherPartyName") String originalSenderOtherPartyName) {
+                                  @JsonProperty("originalSenderOtherPartyName") String originalSenderOtherPartyName,
+                                  @JsonProperty("documentTabChoice") DocumentTabChoice documentTabChoice) {
         this.type = type;
         this.url = url;
         this.editedUrl = editedUrl;
@@ -50,6 +53,7 @@ public ScannedDocumentDetails(@JsonProperty("type") String type,
         this.includeInBundle = includeInBundle;
         this.originalSenderOtherPartyId = originalSenderOtherPartyId;
         this.originalSenderOtherPartyName = originalSenderOtherPartyName;
+        this.documentTabChoice = documentTabChoice;
     }
 
     @JsonIgnore
diff --git a/src/main/java/uk/gov/hmcts/reform/sscs/ccd/domain/SscsCaseData.java b/src/main/java/uk/gov/hmcts/reform/sscs/ccd/domain/SscsCaseData.java
index 2161ac406..bbd1bfc75 100644
--- a/src/main/java/uk/gov/hmcts/reform/sscs/ccd/domain/SscsCaseData.java
+++ b/src/main/java/uk/gov/hmcts/reform/sscs/ccd/domain/SscsCaseData.java
@@ -79,6 +79,8 @@ public class SscsCaseData implements CaseData {
     private List<Bundle> caseBundles;
     private List<Bundle> historicalBundles;
     private List<SscsDocument> sscsDocument;
+    @JsonInclude(JsonInclude.Include.NON_NULL)
+    private List<SscsDocument> sscsInternalDocument;
     private List<SscsDocument> draftSscsDocument;
     private List<SscsFurtherEvidenceDoc> draftSscsFurtherEvidenceDocument;
     private SscsInterlocDecisionDocument sscsInterlocDecisionDocument;
diff --git a/src/main/java/uk/gov/hmcts/reform/sscs/ccd/domain/SscsDocumentDetails.java b/src/main/java/uk/gov/hmcts/reform/sscs/ccd/domain/SscsDocumentDetails.java
index 6892e5efe..7e0554ac3 100644
--- a/src/main/java/uk/gov/hmcts/reform/sscs/ccd/domain/SscsDocumentDetails.java
+++ b/src/main/java/uk/gov/hmcts/reform/sscs/ccd/domain/SscsDocumentDetails.java
@@ -17,6 +17,8 @@ public class SscsDocumentDetails extends AbstractDocumentDetails {
     private UploadParty partyUploaded;
     private String originalPartySender;
     private String dateApproved;
+    @JsonInclude(JsonInclude.Include.NON_NULL)
+    private DocumentTabChoice documentTabChoice;
 
     @JsonCreator
     public SscsDocumentDetails(@JsonProperty("documentType") String documentType,
@@ -36,12 +38,14 @@ public SscsDocumentDetails(@JsonProperty("documentType") String documentType,
                                @JsonProperty("originalPartySender") String originalPartySender,
                                @JsonProperty("originalSenderOtherPartyId") String originalSenderOtherPartyId,
                                @JsonProperty("originalSenderOtherPartyName") String originalSenderOtherPartyName,
-                               @JsonProperty("controlNumber") String controlNumber) {
+                               @JsonProperty("controlNumber") String controlNumber,
+                               @JsonProperty("documentTabChoice") DocumentTabChoice documentTabChoice) {
         super(documentType, documentFileName, documentDateAdded, documentLink, editedDocumentLink, documentComment, evidenceIssued, bundleAddition, documentTranslationStatus, partyUploaded, dateApproved, resizedDocumentLink, avDocumentLink, originalPartySender, originalSenderOtherPartyId, originalSenderOtherPartyName, controlNumber);
         this.documentEmailContent = documentEmailContent;
         this.editedDocumentLink = editedDocumentLink;
         this.partyUploaded = partyUploaded;
         this.dateApproved = dateApproved;
         this.originalPartySender = originalPartySender;
+        this.documentTabChoice = documentTabChoice;
     }
 }