> ## Documentation Index
> Fetch the complete documentation index at: https://support.cim.build/llms.txt
> Use this file to discover all available pages before exploring further.

# Setting the contract drawing baseline

> Lock in your contract drawing set to enable change detection, clash analysis, and design audits. Most CIM Build analysis tools require a confirmed baseline.

The contract baseline is the reference point CIM Build uses to detect changes, run clash analysis, and generate design audits. Until you set the baseline, most analysis tools remain unavailable — the baseline is what tells CIM Build which drawing set represents the agreed contract scope. Taking the time to verify your files before confirming the baseline pays dividends across every analysis you run afterwards.

## How to set the baseline

<Steps>
  <Step title="Navigate to Documents">
    Click **Documents** in the left sidebar.
  </Step>

  <Step title="Review the baseline banner">
    If no baseline has been set, you'll see a banner at the top of the page: **"Contract drawing baseline not set"**, with a description explaining its importance.
  </Step>

  <Step title="Review your drawings and specifications">
    Check your uploaded drawings under the **Drawings** tab and your specifications under the **Specs & Reports** tab. Confirm that all files are correctly assigned and that there are no revision conflicts — conflicts appear as warning badges on affected files.
  </Step>

  <Step title="Resolve any conflicts">
    If health warnings appear (for example, unresolved references), click **Review in Drawings** to investigate. Resolve all conflicts before proceeding.
  </Step>

  <Step title="Set the baseline">
    Once everything looks correct, click **Set contract baseline** to confirm.
  </Step>
</Steps>

<Warning>
  The **Set contract baseline** button is disabled while revision conflicts exist. You must resolve all conflicts before you can confirm the baseline.
</Warning>

## What changes after setting the baseline

Once you confirm the baseline, the Documents page switches to a post-baseline view with three viewing modes:

* **Current Revision** — shows the latest revision of each drawing.
* **Contract** — shows the drawing set as it was at contract execution.
* **Tender** — shows the original tender set.

A **Manage Contract** button also appears, giving you access to adjust baseline settings if needed.

You can now upload **Revisions** from the Upload page. CIM Build will compare each new revision against the baseline to detect changes, and analysis tools like Change Register and Clash Analysis become fully operational.

## Tips

<Tip>
  Take time to verify file assignments and disciplines before setting the baseline. It is the foundation for all downstream analysis — errors introduced here will propagate through every analysis tool in the project.
</Tip>