In Inventory Attributes, there's an EL Expression in Read only

Summary:

the EL Expression for Read only mode for COO

#{(row.bindings.AsnNumberDisplay.inputValue ne null) || (row.bindings.ReceiptSourceCode.inputValue eq 'INVENTORY') || (row.bindings.ReceiptSourceCode.inputValue eq 'TRANSFER ORDER') || (row.bindings.DestinationTypeCode.inputValue eq 'MANUFACTURING')}

In context, what does this mean? Once a PO to be received has an ASN, the COO field was disabled?

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