diff --git a/src/routes/upload/index.ts b/src/routes/upload/index.ts
index 945688b1a..7c761c694 100644
--- a/src/routes/upload/index.ts
+++ b/src/routes/upload/index.ts
@@ -16,7 +16,7 @@ import { Types } from 'mongoose';
 import { getUploadColumns, loadRow, uploadFile } from '@utils/files';
 import { getNextId, getOwnership } from '@utils/form';
 import i18next from 'i18next';
-import get from 'lodash/get';
+import { get, isString } from 'lodash';
 import { logger } from '@services/logger.service';
 import { accessibleBy } from '@casl/mongoose';
 import { insertRecords as insertRecordsPulljob } from '@server/pullJobScheduler';
@@ -123,7 +123,39 @@ async function insertRecords(
     const versionsToCreate: Version[] = [];
     const recordsToCreate: Record[] = [];
     const recordToUpdate: Record[] = [];
-    worksheet.eachRow({ includeEmpty: false }, function (row) {
+
+    // Get resource questions that are linked to a unique field
+    const linkedResourceQuestion = (
+      await Promise.all(
+        columns.map(async (question, index) => {
+          // Extract all the question info from the form structure
+          const fullQuestion = form.fields.find(
+            (field) => field.name === question.name
+          );
+
+          if (fullQuestion && fullQuestion.type === 'resource') {
+            // Verify if the question field is equal to any form import field of the resource
+            const forms = await Form.find({ resource: fullQuestion.resource });
+            for (const resForm of forms) {
+              if (resForm.importField === fullQuestion.displayField) {
+                // Saving the associated import field name and the column index to retrieve the corresponding data
+                question.importField = resForm.importField;
+                question.excelColumnIndex = index;
+                // Get the question type to avoid formatting issues with numeric values
+                const resQuestion = resForm.fields.find(
+                  (field) => field.name === fullQuestion.displayField
+                );
+                question.type = resQuestion?.type;
+                return question;
+              }
+            }
+          }
+        })
+      )
+    ).filter(Boolean); // Remove undefined values
+
+    for (let i = 1; i <= worksheet.rowCount; i++) {
+      const row = worksheet.getRow(i);
       const { data, positionAttributes } = loadRow(columns, row.values);
       const oldRecord = oldRecords.find((rec) =>
         importField === DEFAULT_IMPORT_FIELD.incID
@@ -131,6 +163,20 @@ async function insertRecords(
           : rec.data[importField] === row.getCell(importFieldIndex).value
       );
 
+      // Change the import field value to the object ID if the record exists
+      await Promise.all(
+        linkedResourceQuestion.map(async (field) => {
+          if (!isString(data[field.name]) && field.type !== 'numeric') {
+            data[field.name] = JSON.stringify(data[field.name]);
+          }
+          const record = await Record.findOne({
+            [`data.${field.importField}`]: data[field.name],
+          });
+          if (record) {
+            data[field.name] = record._id.toString();
+          }
+        })
+      );
       // If the record already exists, update it and create a new version
       if (oldRecord) {
         const updatedRecord = cloneDeep(oldRecord);
@@ -185,7 +231,7 @@ async function insertRecords(
           })
         );
       }
-    });
+    }
 
     // Set the incrementalIDs of new records
     for (let i = 0; i < recordsToCreate.length; i += 1) {
diff --git a/src/utils/form/getFieldType.ts b/src/utils/form/getFieldType.ts
index 49dbbb3a2..b273db7d7 100644
--- a/src/utils/form/getFieldType.ts
+++ b/src/utils/form/getFieldType.ts
@@ -85,6 +85,8 @@ export const getFieldType = async (question: {
       return 'owner';
     case 'geospatial':
       return 'geospatial';
+    case 'expression':
+      return 'expression';
     default:
       return 'text';
   }