diff --git a/src/main/java/gov/cabinetoffice/gap/adminbackend/dtos/grantExport/ExportedSubmissionsDto.java b/src/main/java/gov/cabinetoffice/gap/adminbackend/dtos/grantExport/ExportedSubmissionsDto.java
index 9f082540..9a5a26e2 100644
--- a/src/main/java/gov/cabinetoffice/gap/adminbackend/dtos/grantExport/ExportedSubmissionsDto.java
+++ b/src/main/java/gov/cabinetoffice/gap/adminbackend/dtos/grantExport/ExportedSubmissionsDto.java
@@ -13,6 +13,7 @@
 @Builder
 public class ExportedSubmissionsDto {
 
+    private String gapId;
     private String name;
     private String zipFileLocation;
     private UUID submissionId;
diff --git a/src/main/java/gov/cabinetoffice/gap/adminbackend/mappers/CustomGrantExportMapperImpl.java b/src/main/java/gov/cabinetoffice/gap/adminbackend/mappers/CustomGrantExportMapperImpl.java
index d3d04e2f..076f9d53 100644
--- a/src/main/java/gov/cabinetoffice/gap/adminbackend/mappers/CustomGrantExportMapperImpl.java
+++ b/src/main/java/gov/cabinetoffice/gap/adminbackend/mappers/CustomGrantExportMapperImpl.java
@@ -61,6 +61,7 @@ public ExportedSubmissionsDto grantExportEntityToExportedSubmissions(GrantExport
         exportedSubmissionsDto.name(mapExportedSubmissionName(grantExportEntity));
         exportedSubmissionsDto.submittedDate(mapExportedSubmissionSubmittedDate(grantExportEntity));
         exportedSubmissionsDto.submissionName(mapExportedSubmissionSubmissionName(grantExportEntity));
+        exportedSubmissionsDto.gapId(mapExportedSubmissionGapId(grantExportEntity));
 
         return exportedSubmissionsDto.build();
     }
@@ -111,6 +112,19 @@ public String mapExportedSubmissionSubmissionName(GrantExportEntity grantExportE
         return submission.get().getSubmissionName();
     }
 
+    @Override
+    public String mapExportedSubmissionGapId(GrantExportEntity grantExportEntity) {
+        log.info("Getting gap ID from grant export {} and submission {}", grantExportEntity.getId(),
+                grantExportEntity.getId().getSubmissionId());
+        final UUID submissionId = grantExportEntity.getId().getSubmissionId();
+        final Optional<Submission> submission = submissionRepository.findById(submissionId);
+        if (submission.isEmpty()) {
+            log.error("Submission not found for id: {}", submissionId);
+            return null;
+        }
+        return submission.get().getGapId();
+    }
+
     private UUID grantExportEntityIdSubmissionId(GrantExportEntity grantExportEntity) {
         if (grantExportEntity == null) {
             return null;
diff --git a/src/main/java/gov/cabinetoffice/gap/adminbackend/mappers/GrantExportMapper.java b/src/main/java/gov/cabinetoffice/gap/adminbackend/mappers/GrantExportMapper.java
index 94dc4194..e62eb728 100644
--- a/src/main/java/gov/cabinetoffice/gap/adminbackend/mappers/GrantExportMapper.java
+++ b/src/main/java/gov/cabinetoffice/gap/adminbackend/mappers/GrantExportMapper.java
@@ -22,6 +22,7 @@ public interface GrantExportMapper {
     @Mapping(target ="status", source = "status")
     @Mapping(target = "submittedDate", expression = "java(mapExportedSubmissionSubmittedDate(grantExportEntity))")
     @Mapping(target = "submissionName", expression = "java(mapExportedSubmissionSubmissionName(grantExportEntity))")
+    @Mapping(target = "gapId", expression = "java(mapExportedSubmissionGapId(grantExportEntity))")
     ExportedSubmissionsDto grantExportEntityToExportedSubmissions(GrantExportEntity grantExportEntity);
 
     default String mapExportedSubmissionName(GrantExportEntity grantExportEntity) {
@@ -36,4 +37,8 @@ default String mapExportedSubmissionSubmissionName(GrantExportEntity grantExport
         return "";
     }
 
+    default String mapExportedSubmissionGapId(GrantExportEntity grantExportEntity) {
+        return "";
+    }
+
 }