Fixed Assets > Transactions > Asset Disposal > Disposal Type = Sale > INVALID_KEY_OR_REF - Invalid currency reference key xx for entity xxx

The Currency set under Financial tab > Currency field of the Customer record must be in sync with the Currency Id set under the General tab > Currency Id field of the Fixed Asset record.

Note: The Currency Id field refers to the Internal Id of the Currency of the Fixed Asset record. This is the field being checked during the Asset Disposal process.