Use identification simulation to automatically construct an input payload for a specified class. The constructed payload is complete with any required dependent CIs, correctly structured, and syntactically valid for processing by the identification and reconciliation engine (IRE).

1. Navigate to Configuration > Identification/Reconciliation, and click Identification Simulation.
2. In the Start with CI Class box click Start.
3. On the Payload Information form, in the Data source field, select the data source that is associated with this class update.
   For the ServiceNow Discovery data source, select ServiceNow.
4. Select the Class in the payload.
   1. In the Criterion Attributes area select the CI identifier attributes and then specify the values that uniquely identify a CI.
   2. In the Additional Attributes area specify attributes and values that matching CIs will be updated with.
5. For dependent CIs associated with dependent identification rules, fill out the Criterion Attributes and Additional Attributes sections in all Container level sections that display.
6. Click Generate Script. If any errors indicate that there are missing fields, fill in the missing fields and then click Generate Script again.

Use identification simulation to simulate the identification and reconciliation engine (IRE) process of CI identification for an input payload. Provide a valid payload, which was constructed using identification simulation or that was created manually.

1. Navigate to Configuration > Identification/Reconciliation, and click Identification Simulation.
2. (Optional) To run a simulation of an existing payload:
   1. Click Start in the Start with Existing Payload tile.
   2. In the Data source field, select the data source that is associated with this class update.
   3. Paste the JSON payload into the empty canvas.
3. (Optional) To construct a new payload click Start in the Start with CI Class tile. See Automatically generate payload using identification simulation for more information.
4. Click Run Simulation to simulate processing of the payload by IRE.

Identification simulation logs each step of a simulated payload processing. You can then examine these run logs to determine if a payload was processed as expected, and if identification rules are effective. You can adjust the level of logging so it is helpful, and so that the amount of messages is not excessive or insufficient.

1. Navigate to Configuration > Identification/Reconciliation, and click Identification Simulation.
2. Click the Settings icon.
3. Select logging level for the identification and reconciliation engine (IRE) under IE Log Level and for the service cache under Service Cache Log Level.
   The logging levels are displayed in ascending order, from the minimum level to the maximum level of logging.
4. Click on the Settings icon again to close the Settings dialog box.