I tried to send a change to AFR but received this error "Could not update the MBL No. and vessel information for CHRS Replace and CHR1 Cancel. Or the declaration is not existing."

I tried to send a change to AFR but received this error "Could not update the MBL No. and vessel information for CHRS Replace and CHR1 Cancel. Or the declaration is not existing."

Use COPY instead of UPDATE 

UPDATE is for changing/cancelling crucial information on the AFR.

COPY is for updating less crucial data such as ports, parties and piece count.