This action replaces an instance of a business object from a reference list of another object with some other instances.
REPLACE AttributeIdentifier() IN AttributeIdentifier() WITH AttributeIdentifier()
where the first Attribute Identifier indicates the object to replace, the second one – the list to remove from and the third one the object to be inserted. This action can be especially useful when combined with the This and That prefixes (see also “Instance Prefixes” section).
REPLACE ThisTransaction IN Account.Transactions WITH ThatTransaction