When processing a Corporate Action the following error appears:
"There are Unmatched Cost Base Adjustments before the Action Date"
There are Cost base adjustment events (for example, Capital Gain, Tax deferred or AMIT Adjustment) before the date of the Corporate Action.
In the Corporate Action Event, click on the Update Parcelling button next to the Source Holding Account.
If there is no Update Parcelling button on the Corporate Action Event, refer to Maintain Parcel Matches for detailed steps.