Default Compensation currency while creating requisition using autocomplete rules

Summary:

We need to default the compensation currency in the Details section while creating Job Requisition. The requirement is such that there is only one LOV for Compensation currency field and we need it to be automatically populated instead of having the user to select from the dropdown. Kindly suggest how to write that in the autocomplete rule. Which fields should be used for defaulting in Field modification Rule type.

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