---
title: "Get Missing Required Modules"
slug: "get-missing-required-modules"
tags: ["module", "import"]
updated: 2022-12-15T20:13:32Z
published: 2022-12-15T20:13:32Z
canonical: "documentation.decisions.com/get-missing-required-modules"
---

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

# Get Missing Required Modules

| ## Step Details |
| --- |
| **Introduced in Version** | 4.0.0 |
| **Last Modified in Version** | 5.0.0 |
| **Location** | Data > Text |

The **Get Missing Required Modules** step returns a list of the required modules that were missed during import.

---

## Properties

#### Inputs

| Property | Description | Data Type |
| --- | --- | --- |
| Import Session Id | Import session Id | String |

#### Outputs

| Property | Description | Data Type |
| --- | --- | --- |
| Substring1_Output | List of Module names that were missed | List of String |

---

## Example Inputs and Outputs

| Input | Output |
| --- | --- |
| StartImportSession1_Output | Done [] |
| Null Value | EXCEPTION MESSAGE |
| Empty String | EXCEPTION MESSAGE |

#### ![](https://cdn.document360.io/6ef8bcc1-6489-4486-9ad1-83acff7e5df0/Images/Documentation/image-1671133191317.png)

---

## Common Errors

### Import Session Id must be provided

If the Import Session Id is null, an error will occur. To correct this, ensure that the input field has the correct value.

#### Exception Message:

```csharp
Exception Stack Trace: DecisionsFramework.BusinessRuleException: [BusinessRule] Import Session Id must be provided at DecisionsFramework.ServiceLayer.Services.ImportExport.ImportExportSteps.GetImportValidationIssues(String importSessionId, Boolean refreshUnresolved
 at DecisionsFramework.ServiceLayer.Services.ImportExport.ImportExportSteps.GetMissingRequiredModules(String importSessionId)
```

---

### Import Session Id not found

If Import Session Id is blank or empty, an error will occur. To correct this, ensure that the value is mapped or entered correctly.

#### Exception Message:

```csharp
Exception Stack Trace: DecisionsFramework.BusinessRuleException: [BusinessRule] Import Session Id not found at DecisionsFramework.ServiceLayer.Services.ImportExport.ImportExportSteps.GetImportValidationIssues(String importSessionId, Boolean refreshUnresolved
 at DecisionsFramework.ServiceLayer.Services.ImportExport.ImportExportSteps.GetMissingRequiredModules(String importSessionId)
```

## Related

- [Export Module](/export-module.md)
- [Get All Module Names](/get-all-module-names.md)
- [Attach to Module](/attach-to-module.md)