diff --git a/backend/src/services/external-migration/external-migration-fns.ts b/backend/src/services/external-migration/external-migration-fns.ts
index b299d00c7..6d996022a 100644
--- a/backend/src/services/external-migration/external-migration-fns.ts
+++ b/backend/src/services/external-migration/external-migration-fns.ts
@@ -126,6 +126,7 @@ export const importDataIntoInfisicalFn = async ({
 
   const originalToNewProjectId = new Map<string, string>();
   const originalToNewEnvironmentId = new Map<string, string>();
+  const projectsNotImported: string[] = [];
 
   await projectDAL.transaction(async (tx) => {
     for await (const project of data.projects) {
@@ -143,16 +144,21 @@ export const importDataIntoInfisicalFn = async ({
           logger.error(e, `Failed to import to project [name:${project.name}]`);
           throw new BadRequestError({ message: `Failed to import to project [name:${project.name}]` });
         });
-
       originalToNewProjectId.set(project.id, newProject.id);
     }
 
     // Import environments
     if (data.environments) {
       for await (const environment of data.environments) {
-        const projectId = originalToNewProjectId.get(environment.projectId)!;
+        const projectId = originalToNewProjectId.get(environment.projectId);
         const slug = slugify(`${environment.name}-${alphaNumericNanoId(4)}`);
 
+        if (!projectId) {
+          projectsNotImported.push(environment.projectId);
+          // eslint-disable-next-line no-continue
+          continue;
+        }
+
         const existingEnv = await projectEnvDAL.findOne({ projectId, slug }, tx);
 
         if (existingEnv) {
@@ -180,6 +186,11 @@ export const importDataIntoInfisicalFn = async ({
       >();
 
       for (const secret of data.secrets) {
+        if (!originalToNewEnvironmentId.get(secret.environmentId)) {
+          // eslint-disable-next-line no-continue
+          continue;
+        }
+
         if (!mappedToEnvironmentId.has(secret.environmentId)) {
           mappedToEnvironmentId.set(secret.environmentId, []);
         }
@@ -254,4 +265,6 @@ export const importDataIntoInfisicalFn = async ({
       }
     }
   });
+
+  return { projectsNotImported };
 };
diff --git a/backend/src/services/external-migration/external-migration-queue.ts b/backend/src/services/external-migration/external-migration-queue.ts
index 0ee51c5fa..76c7ceb1e 100644
--- a/backend/src/services/external-migration/external-migration-queue.ts
+++ b/backend/src/services/external-migration/external-migration-queue.ts
@@ -97,7 +97,7 @@ export const externalMigrationQueueFactory = ({
 
       const decryptedJson = JSON.parse(decrypted) as TImportInfisicalDataCreate;
 
-      await importDataIntoInfisicalFn({
+      const { projectsNotImported } = await importDataIntoInfisicalFn({
         input: decryptedJson,
         projectDAL,
         projectEnvDAL,
@@ -112,6 +112,17 @@ export const externalMigrationQueueFactory = ({
         secretV2BridgeService
       });
 
+      if (projectsNotImported.length) {
+        logger.info(
+          {
+            actorEmail,
+            actorOrgId: decryptedJson.actorOrgId,
+            projectsNotImported
+          },
+          "One or more projects were not imported during import from external source"
+        );
+      }
+
       await smtpService.sendMail({
         recipients: [actorEmail],
         subjectLine: "Infisical import successful",