diff --git a/.changeset/eighty-kings-dress.md b/.changeset/eighty-kings-dress.md
new file mode 100644
index 0000000000..52aab627ab
--- /dev/null
+++ b/.changeset/eighty-kings-dress.md
@@ -0,0 +1,5 @@
+---
+'@backstage/backend-common': patch
+---
+
+In preparation to the new backend system stable release, the `isDatabaseConflictError` helper have been moved to the `@backstage/backend-plugin-api` package and deprecated from `@backstage/backend-common`.
diff --git a/.changeset/wet-crabs-guess.md b/.changeset/wet-crabs-guess.md
new file mode 100644
index 0000000000..c8a9282a47
--- /dev/null
+++ b/.changeset/wet-crabs-guess.md
@@ -0,0 +1,6 @@
+---
+'@backstage/backend-plugin-api': patch
+'@backstage/plugin-catalog-backend': patch
+---
+
+Start using the `isDatabaseConflictError` helper from the `@backstage/backend-plugin-api` package in order to avoid dependency with the soon to deprecate `@backstage/backend-common` package.
diff --git a/packages/backend-common/api-report.md b/packages/backend-common/api-report.md
index e8b8c90061..df058266ed 100644
--- a/packages/backend-common/api-report.md
+++ b/packages/backend-common/api-report.md
@@ -35,6 +35,7 @@ import { HostDiscovery as HostDiscovery_2 } from '@backstage/backend-app-api';
 import { HttpAuthService } from '@backstage/backend-plugin-api';
 import { IdentityService } from '@backstage/backend-plugin-api';
 import { isChildPath as isChildPath_2 } from '@backstage/backend-plugin-api';
+import { isDatabaseConflictError as isDatabaseConflictError_2 } from '@backstage/backend-plugin-api';
 import { KubeConfig } from '@kubernetes/client-node';
 import { LifecycleService } from '@backstage/backend-plugin-api';
 import { LoadConfigOptionsRemote } from '@backstage/config-loader';
@@ -538,8 +539,8 @@ export const HostDiscovery: typeof HostDiscovery_2;
 // @public @deprecated (undocumented)
 export const isChildPath: typeof isChildPath_2;
 
-// @public
-export function isDatabaseConflictError(e: unknown): boolean;
+// @public @deprecated (undocumented)
+export const isDatabaseConflictError: typeof isDatabaseConflictError_2;
 
 // @public
 export class KubernetesContainerRunner implements ContainerRunner {
diff --git a/packages/backend-common/src/database/index.ts b/packages/backend-common/src/database/index.ts
index a0a61ccdd0..77d75653b8 100644
--- a/packages/backend-common/src/database/index.ts
+++ b/packages/backend-common/src/database/index.ts
@@ -21,4 +21,3 @@ export type {
 } from './DatabaseManager';
 
 export type { PluginDatabaseManager } from './types';
-export { isDatabaseConflictError } from './util';
diff --git a/packages/backend-common/src/deprecated/index.ts b/packages/backend-common/src/deprecated/index.ts
index 708e358bfc..d9ca795c3a 100644
--- a/packages/backend-common/src/deprecated/index.ts
+++ b/packages/backend-common/src/deprecated/index.ts
@@ -17,6 +17,7 @@
 export * from './scm';
 
 import {
+  isDatabaseConflictError as _isDatabaseConflictError,
   resolvePackagePath as _resolvePackagePath,
   resolveSafeChildPath as _resolveSafeChildPath,
   isChildPath as _isChildPath,
@@ -24,21 +25,28 @@ import {
 
 /**
  * @public
- * @deprecated This type is deprecated and will be removed in a future release, see https://github.com/backstage/backstage/issues/24493.
+ * @deprecated This function is deprecated and will be removed in a future release, see https://github.com/backstage/backstage/issues/24493.
+ * Please use the `isDatabaseConflictError` function from the `@backstage/backend-plugin-api` package instead.
+ */
+export const isDatabaseConflictError = _isDatabaseConflictError;
+
+/**
+ * @public
+ * @deprecated This function is deprecated and will be removed in a future release, see https://github.com/backstage/backstage/issues/24493.
  * Please use the `resolvePackagePath` function from the `@backstage/backend-plugin-api` package instead.
  */
 export const resolvePackagePath = _resolvePackagePath;
 
 /**
  * @public
- * @deprecated This type is deprecated and will be removed in a future release, see
+ * @deprecated This function is deprecated and will be removed in a future release, see https://github.com/backstage/backstage/issues/24493.
  * Please use the `resolveSafeChildPath` function from the `@backstage/backend-plugin-api` package instead.
  */
 export const resolveSafeChildPath = _resolveSafeChildPath;
 
 /**
  * @public
- * @deprecated This type is deprecated and will be removed in a future release, see
+ * @deprecated This function is deprecated and will be removed in a future release, see https://github.com/backstage/backstage/issues/24493.
  * Please use the `isChildPath` function from the `@backstage/cli-common` package instead.
  */
 export const isChildPath = _isChildPath;
diff --git a/packages/backend-plugin-api/api-report.md b/packages/backend-plugin-api/api-report.md
index 85ae233dfe..c65fc5cf3e 100644
--- a/packages/backend-plugin-api/api-report.md
+++ b/packages/backend-plugin-api/api-report.md
@@ -357,6 +357,9 @@ export interface IdentityService extends IdentityApi {}
 
 export { isChildPath };
 
+// @public
+export function isDatabaseConflictError(e: unknown): boolean;
+
 // @public (undocumented)
 export interface LifecycleService {
   addShutdownHook(
diff --git a/packages/backend-plugin-api/src/services/index.ts b/packages/backend-plugin-api/src/services/index.ts
index dd24127b88..01d3da444b 100644
--- a/packages/backend-plugin-api/src/services/index.ts
+++ b/packages/backend-plugin-api/src/services/index.ts
@@ -16,3 +16,4 @@
 
 export * from './definitions';
 export * from './system';
+export * from './utilities';
diff --git a/packages/backend-common/src/database/util.ts b/packages/backend-plugin-api/src/services/utilities/database.ts
similarity index 100%
rename from packages/backend-common/src/database/util.ts
rename to packages/backend-plugin-api/src/services/utilities/database.ts
diff --git a/packages/backend-plugin-api/src/services/utilities/index.ts b/packages/backend-plugin-api/src/services/utilities/index.ts
new file mode 100644
index 0000000000..0eec4f3e84
--- /dev/null
+++ b/packages/backend-plugin-api/src/services/utilities/index.ts
@@ -0,0 +1,17 @@
+/*
+ * Copyright 2024 The Backstage Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+export { isDatabaseConflictError } from './database';
diff --git a/plugins/catalog-backend/src/database/DefaultProviderDatabase.ts b/plugins/catalog-backend/src/database/DefaultProviderDatabase.ts
index 5b016438e3..94026fbfa0 100644
--- a/plugins/catalog-backend/src/database/DefaultProviderDatabase.ts
+++ b/plugins/catalog-backend/src/database/DefaultProviderDatabase.ts
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-import { isDatabaseConflictError } from '@backstage/backend-common';
 import { stringifyEntityRef } from '@backstage/catalog-model';
 import { DeferredEntity } from '@backstage/plugin-catalog-node';
 import { Knex } from 'knex';
@@ -34,7 +33,10 @@ import {
   Transaction,
 } from './types';
 import { generateStableHash } from './util';
-import { LoggerService } from '@backstage/backend-plugin-api';
+import {
+  LoggerService,
+  isDatabaseConflictError,
+} from '@backstage/backend-plugin-api';
 
 // The number of items that are sent per batch to the database layer, when
 // doing .batchInsert calls to knex. This needs to be low enough to not cause
diff --git a/plugins/catalog-backend/src/database/conversion.ts b/plugins/catalog-backend/src/database/conversion.ts
index 827ae9b367..32de149572 100644
--- a/plugins/catalog-backend/src/database/conversion.ts
+++ b/plugins/catalog-backend/src/database/conversion.ts
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-import { isDatabaseConflictError } from '@backstage/backend-common';
+import { isDatabaseConflictError } from '@backstage/backend-plugin-api';
 import { ConflictError, InputError } from '@backstage/errors';
 import { DateTime } from 'luxon';
 
diff --git a/plugins/catalog-backend/src/database/operations/refreshState/insertUnprocessedEntity.ts b/plugins/catalog-backend/src/database/operations/refreshState/insertUnprocessedEntity.ts
index d6309c27fc..195dbe1f2c 100644
--- a/plugins/catalog-backend/src/database/operations/refreshState/insertUnprocessedEntity.ts
+++ b/plugins/catalog-backend/src/database/operations/refreshState/insertUnprocessedEntity.ts
@@ -18,8 +18,10 @@ import { Entity, stringifyEntityRef } from '@backstage/catalog-model';
 import { Knex } from 'knex';
 import { DbRefreshStateRow } from '../../tables';
 import { v4 as uuid } from 'uuid';
-import { isDatabaseConflictError } from '@backstage/backend-common';
-import { LoggerService } from '@backstage/backend-plugin-api';
+import {
+  LoggerService,
+  isDatabaseConflictError,
+} from '@backstage/backend-plugin-api';
 
 /**
  * Attempts to insert a new refresh state row for the given entity, returning