PROBLEM
The Pivot Table (Data Management) tool creates an Output Table from an Input Table by reducing redundant records and flattening one-to-many relationships. In some instances, using the tool fails and returns a generic error, “Error 999999: Error executing function.”
This error is caused by the presence of NULL values in the field used for the pivot field.
Note:
If background processing is turned on, the error message, "Error 001143: Background server threw an exception" may be returned. This is also caused by NULL values in the pivot field, and the NULL values must be removed or replaced.
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