Document Sequnces

Dear All,

I am getting the error message as in the attachment from cash management responsibility , I think this is because of the new bank account we’re using is missing a document sequence so I have defined a document category and assignment  from system admin responsibility  now the question is how do I link this document sequence with current account .

I  have also attached a screenshot from the bank account – document sequence , I am not sure about the value supposed to be putted into this filed (Document Name, Last used and Last available ).

Appreciate your feedback,