diff --git a/packages/apps/job-launcher/client/src/components/Jobs/Create/CvatJobRequestForm.tsx b/packages/apps/job-launcher/client/src/components/Jobs/Create/CvatJobRequestForm.tsx
index 30087e1693..d6c124ac9a 100644
--- a/packages/apps/job-launcher/client/src/components/Jobs/Create/CvatJobRequestForm.tsx
+++ b/packages/apps/job-launcher/client/src/components/Jobs/Create/CvatJobRequestForm.tsx
@@ -513,6 +513,18 @@ export const CvatJobRequestForm = () => {
                       }
                       error={touched.dataPath && Boolean(errors.dataPath)}
                       helperText={errors.dataPath}
+                      InputProps={{
+                        endAdornment: (
+                          <InputAdornment position="end">
+                            <Tooltip title="This field should contain the relative path to the data, excluding protocol symbols like '://'. For example, if the full URL is 'https://bucket.com/bucket_name/data', the input should only include 'data'.">
+                              <HelpOutlineIcon
+                                color="secondary"
+                                sx={{ cursor: 'pointer' }}
+                              />
+                            </Tooltip>
+                          </InputAdornment>
+                        ),
+                      }}
                     />
                   </FormControl>
                 </Grid>
@@ -609,6 +621,18 @@ export const CvatJobRequestForm = () => {
                         }
                         error={touched.bpPath && Boolean(errors.bpPath)}
                         helperText={errors.bpPath}
+                        InputProps={{
+                          endAdornment: (
+                            <InputAdornment position="end">
+                              <Tooltip title="This field should contain the relative path to the data, excluding protocol symbols like '://'. For example, if the full URL is 'https://bucket.com/annotations/points_15.json', the input should only include 'annotations/points_15.json'.">
+                                <HelpOutlineIcon
+                                  color="secondary"
+                                  sx={{ cursor: 'pointer' }}
+                                />
+                              </Tooltip>
+                            </InputAdornment>
+                          ),
+                        }}
                       />
                     </FormControl>
                   </Grid>
@@ -616,9 +640,17 @@ export const CvatJobRequestForm = () => {
               )}
               <Grid item container xs={12} spacing={2}>
                 <Grid item xs={12}>
-                  <Typography variant="body2" fontWeight={700}>
-                    Ground truth
-                  </Typography>
+                  <Box display="flex">
+                    <Typography variant="body2" fontWeight={700}>
+                      Ground truth
+                    </Typography>
+                    <Tooltip title="Ground truth data serves as the reference or gold standard for your annotations, representing the correct data against which annotations are compared for accuracy and quality assessment.">
+                      <HelpOutlineIcon
+                        color="secondary"
+                        sx={{ cursor: 'pointer', ml: 1 }}
+                      />
+                    </Tooltip>
+                  </Box>
                 </Grid>
                 <Grid item xs={12} sm={12} md={6}>
                   <FormControl variant="outlined" fullWidth>
@@ -701,7 +733,7 @@ export const CvatJobRequestForm = () => {
                       InputProps={{
                         endAdornment: (
                           <InputAdornment position="end">
-                            <Tooltip title="This field should contain a URL or link to the ground truth data. Ground truth data serves as the reference or gold standard for your annotations. It represents the correct or desired data, against which the annotations are compared for accuracy and quality assessment.">
+                            <Tooltip title="This field should contain the relative path to the data, excluding protocol symbols like '://'. For example, if the full URL is 'https://bucket.com/annotations/gt_name.json', the input should only include 'annotations/gt_name.json'.">
                               <HelpOutlineIcon
                                 color="secondary"
                                 sx={{ cursor: 'pointer' }}
diff --git a/packages/apps/job-launcher/server/src/modules/job/job.service.ts b/packages/apps/job-launcher/server/src/modules/job/job.service.ts
index 88edbd99e3..21a495ce27 100644
--- a/packages/apps/job-launcher/server/src/modules/job/job.service.ts
+++ b/packages/apps/job-launcher/server/src/modules/job/job.service.ts
@@ -541,7 +541,7 @@ export class JobService {
         const gt = await this.storageService.download(
           `${urls.gtUrl.protocol}//${urls.gtUrl.host}${urls.gtUrl.pathname}`,
         );
-        if (!gt || gt.length === 0)
+        if (!gt || !gt.images || gt.images.length === 0)
           throw new ControlledError(
             ErrorJob.GroundThuthValidationFailed,
             HttpStatus.BAD_REQUEST,
@@ -574,7 +574,18 @@ export class JobService {
         const gt = await this.storageService.download(
           `${urls.gtUrl.protocol}//${urls.gtUrl.host}${urls.gtUrl.pathname}`,
         );
+        if (!gt || !gt.images || gt.images.length === 0)
+          throw new ControlledError(
+            ErrorJob.GroundThuthValidationFailed,
+            HttpStatus.BAD_REQUEST,
+          );
+
         const data = await listObjectsInBucket(urls.dataUrl);
+        if (!data || data.length === 0 || !data[0])
+          throw new ControlledError(
+            ErrorJob.DatasetValidationFailed,
+            HttpStatus.BAD_REQUEST,
+          );
 
         await this.checkImageConsistency(gt.images, data);
 
@@ -880,6 +891,13 @@ export class JobService {
     const data = await this.storageService.download(dataUrl.href);
     const gt = await this.storageService.download(gtUrl.href);
 
+    if (!gt || !gt.images || gt.images.length === 0) {
+      throw new ControlledError(
+        ErrorJob.GroundThuthValidationFailed,
+        HttpStatus.BAD_REQUEST,
+      );
+    }
+
     let gtEntries = 0;
 
     gt.images.forEach((gtImage: CvatImageData) => {