Hi Folks, We have issue with DFF. DFF is associated with PO distribution form. When we navigate to it and open, it shows the results. However when we query same po from PO Summary Form and go to distribution , it throws the error. is there any way to avoid error , We are getting below error. APP-FND-00676: The flexfield routine FDFGDC cannot read the default reference field specified for this descriptive flexfield. The developer specified a context field (via the Register Descriptive Flexfields form) that does not exist in this block of this form. APP-FND-00730: This flexfield has an invalid value set. It may use a special value set that uses an Edit event user exit, and the user exit has failed. If you are using a form on a graphical user interface (GUI) you may have an invalid value set of a different type, possibly a table-validated value set where the table or view does not exist or where there is an invalid WHERE clause. Please share if you any documentation available. Thanks!!