What Does Rejection " importer account type cannot submit declaration and Contract Account invalid for billing" Mean?

If you received this kind of rejection possible reason is that you are using the Exporter RM not the Importer RM.

Since the launch of CARM in early October, the CARM system no longer allows Exporter RMs to submit declarations. It used to allow it in the past but will now flag it as a system error.

For more info: https://www.cbsa-asfc.gc.ca/publications/cn-ad/cn24-37-eng.html

Additional Information:

Releases that have been submitted using an exporter “RM” program account that have not yet been accounted for, specifically those submitted prior to and during the CARM Cutover period, will not be able to submit the CAD using this BN15.Custom's Notice: Customs Notice 24-37: CARM Reminder: Improper Use of Exporter BN15 to Obtain Release and Account for Imported Goods (cbsa-asfc.gc.ca)

6. If this scenario applies, please see below options available to ensure goods that have already been released are accounted for:

a. If the exporter already has an importer BN15, submit the CAD using the importer BN15 program account.

b. If the exporter does not have an importer BN15, one should be obtained immediately.

This can be done by enrolling in the importer program via the CARM Client Portal.

Once importer program account has been created, the CAD may be filed using the importer BN15.

c. If an importer BN15 cannot be created in a timely manner, customs broker may use their BN15 to submit the CAD on behalf of their client.