LegReturnRateReferencePage <42562> field
FIX 5.0 SP2 EP270
Identifies the reference "page" from the rate source.
For FX, the reference page to the spot rate to be used for the reference FX spot rate.
When LegReturnRateInformationSource <42561> = 3 (ISDA Settlement Rate Option) this contains the value from the scheme that reflects the terms of the Annex A to the ISDA 1998 FX and Currency Option Definitions.