Post-arrival amendments can be submitted electronically to the CBSA for minor changes (e.g. piece count, goods details etc.)
To do so, simply make the necessary changes, save the record and, Send As: Corrected (Amended) for both the trip and the cargo.
For major changes (e.g. change of trip number or cargo control number) a BSF673 form must be completed in duplicate and faxed or submitted in person to:
Canada Border Services Agency
Ambassador Bridge, Commercial Operations
4285 Industrial Drive, Windsor, Ontario
Facsimile: (519)967-4206
After the CBSA has processed the change, users must enter the correct data electronically.
More detailed instructions on the completion of the BSF673 can be found on the second page of the attachment.
Attachments:
English 
Chinese (China) 
Chinese (Hong Kong) 
French 
German 
Italian 
Japanese 
Portuguese 
Romanian 
Slovak 
Spanish (Colombia) 
Spanish (Chile) 
Spanish (Ecuador) 
Spanish (Mexico) 