Error 8888: The declaration with the above receipt number has not been previously cancelled
If you receive the message when filing an information return "Error 8888: The declaration with the above receipt number has not been previously cancelled. It must replace another declaration that is no longer valid. Consult this information.

This error occurs when you have indicated, as the receipt number of a previous declaration, a receipt whose declaration is still active.
In this case, an attempt is made to submit a substitute declaration without the declaration that is intended to be replaced having been previously cancelled.
To submit the declaration, check its status by accessing "Declaration Inquiries and Cancellations". If the declaration you want to replace is active, it cannot be replaced. You must process the cancellation of the previous declaration.