# How to look up DMAP file retention settings in Illumina LIMS Project Manager

The following instructions describe how to check DMAP file retention settings in Illumina LIMS. When using Illumina LIMS to scan Beadchips, DMAPs are retained in the Decode folder for 60 days. The countdown starts after 'Image Beadchip Completed'.

**To check the Illumina LIMS DMAP file retention settings:**

1. Open LIMS Project Manager.
2. Go to Tools > Administrator > App Values.
3. Double-click 'File Retention' to expand
4. Select the + sign next to Decode File; the number seen is the retention time in days. The default value is 60 (days). The countdown starts after the BeadChip is flagged as 'Image Beadchip Completed'.

![](/files/xBeU4SbC47Qrs3sVTP2g)

For additional information, see [Illumina LIMS Project Manager Guide Revision D](https://support.illumina.com/downloads/illumina_lims_project_manager_guide_\(15000396_c\).html).

\
\
\ <br>

|                                                                                                                                                                                                                                                                                                                                                                   |
| :---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------: |
| *For any feedback or questions regarding this article (Illumina Knowledge Article #6271), contact Illumina Technical Support* [*techsupport@illumina.com*](mailto:techsupport@illumina.com?subject=Question%2FFeedback%20Regarding%20Illumina%20Knowledge%20Article%20#000006271%20-%20Microarray%20\&body=Dear%20Illumina%20Technical%20Support,%0D%0A%0D%0A)*.* |


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://knowledge.illumina.com/microarray/lims/microarray-lims-troubleshooting-list/000006271.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.