Integrations (PTC products, 3rd party products and code) > PTC product integrations (Asset Library, Lifecycle Manager, Reviewer, Windchill & ThingWorx) > PTC Integrity Lifecycle Manager > Synchronizing a model and PTC Integrity Lifecycle Manager document > Synchronizing requirements the first time - requirement mapping (Integration for PTC Integrity Lifecycle Manager)
  
Synchronizing requirements the first time - requirement mapping (Integration for PTC Integrity Lifecycle Manager)
When you synchronize Requirements the first time, you may have SysML Requirements Requirements in a Modeler Model that require exporting to a PTC Integrity Lifecycle Manager Document, or Requirements in a PTC Integrity Lifecycle Manager Document that require importing to a Modeler Package.
Before Integration for Lifecycle Manager can work with a PTC Integrity Lifecycle Manager Document, the Document Type of that Document must be configured to work with Integration for Lifecycle Manager. How?
To import PTC Integrity Lifecycle Manager requirements to a Modeler package the first time:
1. From Modeler, open the model that owns the Package into which you want to import the PTC Integrity Lifecycle Manager Requirements.
2. In the Packages pane, select the Package into which you want to import the PTC Integrity Lifecycle Manager Requirements, that is, the root item.
3. On the Tools menu, point toIntegrity Lifecycle Manager, and then click Synchronize.
4. Set the options on each page of Integration for Lifecycle Manager as required.
If you require help for any of Integration for Lifecycle Manager pages, click the Help button.
* 
On the Mapping Selection page, click the Create New button, and set the Mapping Type to Requirement Mapping.
On the Synchronization Directions page, in the Options group select the Modeler <- Integrity Lifecycle Manager option.
On the Synchronize page, click the Save Mapping and Synchronize button so that you can repeat the synchronization using the same settings.
5. On the Synchronization Log page, review the log for any problems that occurred during the synchronization.
To export Modeler SysML requirements to a PTC Integrity Lifecycle Manager Document the first time:
1. From Modeler, open the model that owns the Requirements that you want to export to a PTC Integrity Lifecycle Manager Document.
2. In the Packages pane, select the Package from which you want to export SysML Requirements to the PTC Integrity Lifecycle Manager Document, that is, the root item.
3. On the Tools menu, point to Integrity Lifecycle Manager, and then click Synchronize.
4. Set the options on each page of Integration for Lifecycle Manager as required.
If you require help for any of Integration for Lifecycle Manager pages, click the Help button.
* 
On the Mapping Selection page, click the Create New button, and set the Mapping Type to Requirement Mapping.
On the Synchronization Directions page, in the Object group select the Modeler <- Integrity Lifecycle Manager option.
On the Synchronize page, click the Save Mapping and Synchronize button so that you can repeat the synchronization using the same settings.
5. On the Synchronization Log page, review the log for any problems that occurred during the synchronization.