Marsha Beier-

I am not aware of an issue that would cause an error for invalid account number when exporting (or importing) that would be affected by closing the month.

I would verify the accounts on the file you are creating to assure a new account was not added in one company that is not existing in the other.

Otherwise, I would confirm the file is meeting the import formats.  Use this link to review formats: 

Import file formats  

Sincerely,

Coleen

Marsha Beier-

I am not aware of an issue that would cause an error for invalid account number when exporting (or importing) that would be affected by closing the month.

I would verify the accounts on the file you are creating to assure a new account was not added in one company that is not existing in the other.

Otherwise, I would confirm the file is meeting the import formats.  Use this link to review formats: 

Import file formats  

Sincerely,

Coleen