To Generate Document Codes for Multiple Documents

Open a folder that has the environment applied which contains the document code definition.
Select multiple documents and select Document > Attributes > Document Code.
The Generate Multiple Document Codes dialog opens.
Enter the required codes in the relevant fields.
Required fields are in bold.
Click Advanced.
To apply codes from a range of numbers, turn on Range and enter the lower and upper limits of the range.
To apply codes sequentially, turn on Numbers in sequence.
Click Generate.
The number part of the codes are generated according to the rules you established in the Advanced section of the dialog, and the document code displays in the Document Code field.
Click Save.