HMRC has issued the following communication.

We are aware that not all goods movements on route to border locations have been able to create a valid Goods Movement Reference (GMR).

If you are able to complete a GMR, then you should continue to do so.

If you are not able to complete a GMR, then vehicles or trailers carrying non-controlled goods may travel without one during this period. However, you must provide alternative documentation. For example, one of the following (non-exhaustive): Transit Accompanying Document (TAD) (If unable to create a TAD, then photocopies or digital copies of copy 4 of the SAD should be carried); Movement Reference Number (MRN); Declaration Unique Consignment Reference (DUCR); Hauliers with empty vehicles can provide their GB EORI number.

We apologise for any inconvenience this causes.