Data Management Capabilities > Using Packages to Import and Export Data for Offline Collaboration > Send Delivery > Zipping a Package for Delivery > Enable Fault Tolerance
  
Enable Fault Tolerance
The process of zipping a replication package might fail if the package contains faulty objects and links. An object or a link may become faulty due to multiple reasons. For example, data migrated from a different PLM system to Windchill may not get updated properly, causing data corruption.
You can make a base or incremental delivery of a replication package fault tolerant by selecting the Enable Fault Tolerance checkbox in the Zip Package for Delivery dialog box.
The zipping process of a fault-tolerant delivery does not fail even if the replication package contains faulty objects and links. The faulty objects and links are excluded from the ZIP file and are also listed as excluded in the Delivery Content table. The objects that are dependent on the faulty objects, such as child parts dependent on parent parts that are faulty, are included in the ZIP file but not delivered to the recipient. When the Enable Fault Tolerance checkbox is not selected, the delivery fails if the package contains faulty objects and links.
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• The Enable Fault Tolerance feature is supported only in the Windchill 12.0.2.0 release and onwards. When the package is intended to be imported from Windchill 12.0.2.0 to Windchill 12.0.1.0 or Windchill 12.0.0.0, do not select the Enable Fault Tolerance checkbox when exporting the package.
• In certain cases, the zipping process of a fault-tolerant delivery can fail. For more information, see Failure of a Fault-Tolerant Delivery.
When you set the com.ptc.windchill.wp.faulttolerance.isenabled property to true, the Enable Fault Tolerance checkbox is selected by default. The default value of this property is false. Missing content tracking is turned on implicitly if the Enable Fault Tolerance checkbox is selected.
After the faulty objects and links are rectified, the incremental delivery will contain only the following objects:
• Faulty objects and links that were skipped in the previous delivery and are now rectified.
• After faulty objects are rectified, the associated dependent objects that were skipped in the previous delivery.
• Newly created objects.
• Non-faulty objects that have been updated.
• Objects and missing content that were not accessible in the previous package, which are now accessible.
You can also enable or disable fault tolerance using the Windchill Replication Package ZIP Delivery command line utility. For more information, see Enabling Fault Tolerance Using Command Line Utility.