---
title: "Import errors"
slug: "import-errors"
description: "How to identify and resolve import errors caused by duplicate objects, such as double Failure Modes under a Tag."
updated: 2026-09-11T13:51:51Z
published: 2026-09-11T13:51:51Z
canonical: "ims-handbook.cenosco.com/import-errors"
stale: true
---

> ## Documentation Index
> Fetch the complete documentation index at: https://ims-handbook.cenosco.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Import errors

When you import RCM analysis data into IMS, the import can be blocked by errors that vary in severity and also in how easy they are to resolve. This article covers one common cause of import errors — duplicate objects — and how to investigate it.

## Duplicate Objects

Some import errors are caused by duplicate objects, though it can be hard to identify which objects are involved. You may see the following error while importing tasks:

![The import error message shown when duplicate objects are detected](https://cdn.document360.io/e492a0e0-a4ba-4aca-8fc6-76b95f91fdf3/Images/Documentation/Import_error.jpg?sv=2026-02-06&spr=https&st=2026-10-28T21%3A53%3A00Z&se=2026-10-28T22%3A53%3A00Z&sr=c&sp=r&sig=RO5jTQDKx%2B2p%2B%2BNXZLwfAQHK8bjeAY%2Bfx%2FATxrgaokU%3D)

## Example: Duplicate Failure Modes Under a Tag

One possible situation in the RCM analysis involves double Failure Modes defined under a Tag. This can happen if you assign the same RSL twice, either completely or partly.

![Two Failure Modes duplicated under the same Tag](https://cdn.document360.io/e492a0e0-a4ba-4aca-8fc6-76b95f91fdf3/Images/Documentation/Double FMs.jpg?sv=2026-02-06&spr=https&st=2026-10-28T21%3A53%3A00Z&se=2026-10-28T22%3A53%3A00Z&sr=c&sp=r&sig=RO5jTQDKx%2B2p%2B%2BNXZLwfAQHK8bjeAY%2Bfx%2FATxrgaokU%3D)

## How to Investigate

If you run into this situation, try the following:

- Reduce the import file to a sub-selection of tags.
- Check the Failure Modes in the Tag details.
- Check the Tag-Failure Mode-Task uniqueness in the import file.

> [!WARNING]
> Caution
> 
> Removing the duplicate entries from the import file does not resolve the issue on its own. You must also remove the duplicate entries from the RCM analysis.

Reliability Centered Maintenance

Integrity Management System

Reliability Strategy Library (also referred to as "Maintenance Library")

## Related

- [References and International Standards](/references-and-international-standards.md)