The old() function returns the old value of the current field.
old()
None
Determined by the type of data stored in the field.
This function should be used only in a field change script to retrieve the value that the field contained before it was changed.
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This function should not be used in a change script run using the run script or run script delayed statements. Focus must be in the field for which this function is run for it to operate properly. |
We don’t recommend using the old() function with composite fields.