diff --git a/packages/components/package-lock.json b/packages/components/package-lock.json
index 4960217ef5..18780237de 100644
--- a/packages/components/package-lock.json
+++ b/packages/components/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@labkey/components",
-  "version": "7.40.0",
+  "version": "7.41.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@labkey/components",
-      "version": "7.40.0",
+      "version": "7.41.0",
       "license": "SEE LICENSE IN LICENSE.txt",
       "dependencies": {
         "@hello-pangea/dnd": "18.0.1",
diff --git a/packages/components/package.json b/packages/components/package.json
index 44b6b4b2c1..f4b2e6b088 100644
--- a/packages/components/package.json
+++ b/packages/components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@labkey/components",
-  "version": "7.40.0",
+  "version": "7.41.0",
   "description": "Components, models, actions, and utility functions for LabKey applications and pages",
   "sideEffects": false,
   "files": [
diff --git a/packages/components/releaseNotes/components.md b/packages/components/releaseNotes/components.md
index 4aeffd5135..0367471a67 100644
--- a/packages/components/releaseNotes/components.md
+++ b/packages/components/releaseNotes/components.md
@@ -1,6 +1,10 @@
 # @labkey/components
 Components, models, actions, and utility functions for LabKey applications and pages
 
+### version 7.41.0
+*Released*: 1 June 2026
+- GitHub Issue 903: Remove Cross-Container Sample and Data Class Import Feature
+
 ### version 7.40.0
 *Released*: 28 May 2026
 - Calculated Column Assistant
diff --git a/packages/components/src/internal/components/entities/models.ts b/packages/components/src/internal/components/entities/models.ts
index 3df0debdf1..81ee350ee7 100644
--- a/packages/components/src/internal/components/entities/models.ts
+++ b/packages/components/src/internal/components/entities/models.ts
@@ -468,7 +468,6 @@ export interface EntityDataType {
     ancestorColumnName?: string;
     appUrlPrefixParts?: string[];
     containerFilter?: Query.ContainerFilter;
-    crossFolderImportForbidden?: boolean;
     deleteHelpLinkTopic: string;
     dependencyText: Function | string;
     descriptionPlural: string;
diff --git a/packages/test/config/integration.setup.js b/packages/test/config/integration.setup.js
index f0a0bef512..8b8e2f2319 100644
--- a/packages/test/config/integration.setup.js
+++ b/packages/test/config/integration.setup.js
@@ -138,3 +138,11 @@ process.env.INTEGRATION_SERVER = `${protocol}://${server}:${port}`;
 process.env.INTEGRATION_CONTEXT_PATH = contextPath;
 process.env.INTEGRATION_AUTH_USER = user;
 process.env.INTEGRATION_AUTH_PASS = pass;
+
+// Seed configuration for reproducible random test data.
+// Each Jest worker inherits TEST_SEED from the environment; if absent, generate
+// from Date.now() and write back so utils.ts (loaded after setupFiles) sees it.
+if (!process.env.TEST_SEED) {
+    process.env.TEST_SEED = String(Date.now() >>> 0);
+}
+console.log(`[LabKey Test] Random seed: ${process.env.TEST_SEED}  (rerun with: TEST_SEED=${process.env.TEST_SEED})`);
diff --git a/packages/test/package-lock.json b/packages/test/package-lock.json
index 0e40fe84a8..d47d2db1be 100644
--- a/packages/test/package-lock.json
+++ b/packages/test/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@labkey/test",
-  "version": "1.13.2",
+  "version": "1.14.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@labkey/test",
-      "version": "1.13.2",
+      "version": "1.14.0",
       "license": "SEE LICENSE IN LICENSE.txt",
       "dependencies": {
         "properties-reader": "3.0.1",
diff --git a/packages/test/package.json b/packages/test/package.json
index ffb437d268..d985ecbd16 100644
--- a/packages/test/package.json
+++ b/packages/test/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@labkey/test",
-  "version": "1.13.2",
+  "version": "1.14.0",
   "description": "Configurations and utilities for JavaScript-based testing",
   "main": "dist/test.js",
   "module": "dist/test.js",
diff --git a/packages/test/releaseNotes/test.md b/packages/test/releaseNotes/test.md
index 97026f972c..c00217ed2e 100644
--- a/packages/test/releaseNotes/test.md
+++ b/packages/test/releaseNotes/test.md
@@ -1,6 +1,10 @@
 # @labkey/test
 Utilities and configurations for running JavaScript tests with LabKey Server.
 
+### version 1.14.0
+*Released*: 1 June 2026
+- Package updates
+
 ### version 1.12.0
 *Released*: 26 February 2026
 - Package updates
diff --git a/packages/test/src/ExperimentCrudUtils.ts b/packages/test/src/ExperimentCrudUtils.ts
index 536b99a7c1..68512d09bf 100644
--- a/packages/test/src/ExperimentCrudUtils.ts
+++ b/packages/test/src/ExperimentCrudUtils.ts
@@ -111,7 +111,7 @@ export async function importData(server, importText: string, queryName: string,
     let errorResp = null;
     const response = await server.request('experiment', isSamples ? 'importSamples' : 'importData', (agent, url) => {
             return agent
-                .post(url + '?auditBehavior=DETAILED&crossFolderImport=true')
+                .post(url + '?auditBehavior=DETAILED')
                 .type('form')
                 .send({
                     schemaName: isSamples ? 'samples' : 'exp.data',
@@ -214,7 +214,7 @@ export async function importCrossTypeData(
             isSamples ? 'importSamples' : 'importData',
             (agent, url) => {
                 return agent
-                    .post(url + '?auditBehavior=DETAILED&crossFolderImport=true&crossTypeImport=true')
+                    .post(url + '?auditBehavior=DETAILED&crossTypeImport=true')
                     .type('form')
                     .send({
                         schemaName: undefined,
diff --git a/packages/test/src/index.ts b/packages/test/src/index.ts
index 0fdaf3822a..0dde788d50 100644
--- a/packages/test/src/index.ts
+++ b/packages/test/src/index.ts
@@ -11,6 +11,8 @@ import {
 } from './integrationUtils';
 import {
     sleep,
+    random,
+    testSeed,
     shuffleArray,
     selectRandomN,
     generateDomainName,
@@ -72,6 +74,8 @@ export {
     IntegrationTestServer,
     RequestOptions,
     sleep,
+    random,
+    testSeed,
     successfulResponse,
     TestUser,
     ExperimentCRUDUtils,
diff --git a/packages/test/src/utils.ts b/packages/test/src/utils.ts
index 6de1e3bda3..4dbaa2eb37 100644
--- a/packages/test/src/utils.ts
+++ b/packages/test/src/utils.ts
@@ -2,10 +2,36 @@
  * Copyright (c) 2020-2026 LabKey Corporation. All rights reserved. No portion of this work may be reproduced
  * in any form or by any electronic or mechanical means without written permission from LabKey Corporation.
  */
-/**
- * Utility method to asynchronously sleep for a specified number of milliseconds.
- * @param ms number of milliseconds to sleep.
- */
+
+// Seeded PRNG (mulberry32). Reads TEST_SEED at module load time;
+// falls back to Date.now() if not set.
+function _mulberry32(seed: number): () => number {
+    return function () {
+        seed |= 0;
+        seed = seed + 0x6D2B79F5 | 0;
+        let t = Math.imul(seed ^ (seed >>> 15), 1 | seed);
+        t = t + Math.imul(t ^ (t >>> 7), 61 | t) ^ t;
+        return ((t ^ (t >>> 14)) >>> 0) / 4294967296;
+    };
+}
+
+const _seedStr = typeof process !== 'undefined' ? process.env?.TEST_SEED : undefined;
+const _seed = _seedStr !== undefined ? (parseInt(_seedStr, 10) >>> 0) : (Date.now() >>> 0);
+
+/** Seeded drop-in for Math.random(). Use in tests instead of Math.random()
+ *  so runs are reproducible via the TEST_SEED environment variable.
+ *
+ *  Note: this is a module-level singleton — all test files loaded in the same Jest worker share
+ *  one sequence. With --maxWorkers 1 (the default for integration tests) this means full
+ *  reproducibility: the same seed always produces the same sequence regardless of which file
+ *  calls random() and in what order. If --maxWorkers is increased, each worker gets its own
+ *  copy of this module initialized from the same TEST_SEED, so files on different workers draw
+ *  from independent sequences — a multi-worker run may not reproduce identically under
+ *  --maxWorkers 1 even with the same seed. */
+export const random = _mulberry32(_seed);
+
+/** The seed used for this test run. Log it so failures can be reproduced with TEST_SEED=<value>. */
+export const testSeed = _seed;
 
 const QUERY_KEY_CHARSET = '$/&}~,.';
 const ALPHA = 'ABCDabcvxyz';
@@ -16,6 +42,10 @@ const WHITE_SPACE = ' \t\n\u00A0';
 const FIELD_NAME_CHARSET = ALPHA + NUMERIC + QUERY_KEY_CHARSET + SPECIAL + ' '/*only space is allowed, no other whitespace chars*/;
 const STRING_CHARSET = ALPHA + NUMERIC + QUERY_KEY_CHARSET + SPECIAL + WHITE_SPACE;
 
+/**
+ * Utility method to asynchronously sleep for a specified number of milliseconds.
+ * @param ms number of milliseconds to sleep.
+ */
 export const sleep = (ms = 0): Promise<void> => {
     return new Promise(resolve => {
         setTimeout(() => {
@@ -27,7 +57,7 @@ export const sleep = (ms = 0): Promise<void> => {
 export function shuffleArray<T>(original: T[]) : T[] {
     const array = [...original];
     for (let i = array.length - 1; i >= 0; i--) {
-        const j = Math.floor(Math.random() * (i + 1));
+        const j = Math.floor(random() * (i + 1));
         [array[i], array[j]] = [array[j], array[i]];
     }
     return array;
@@ -45,7 +75,7 @@ export function generateRandomStr(length: number = 8, charset: string = STRING_C
     const charsetLength = charset.length;
 
     while (result.length < length) {
-        const randomIndex = Math.floor(Math.random() * charsetLength);
+        const randomIndex = Math.floor(random() * charsetLength);
         const select = charset[randomIndex];
         if (!excluded || excluded.indexOf(select) === -1)
             result += charset[randomIndex];