Once an aba file has been generated and you click on Yes to the prompt Was the bank file created successfully? you cannot 'regenerate' the file. This is to ensure you do not double pay your suppliers.
Available Options if the bank file has an error
If you discover an error in the bank file when you upload it to your online banking, eg: incorrect BSB, and you answered Yes to the prompt Was the bank file created successfully? then you have a few options:
Create a new bank file. Refer to the process below.
Manually enter the payments into your online banking. This has a higher chance of error and that the payment may not match what was recorded in Attaché but is still an option.
You may be able to call your bank and authorise them to make the necessary correction to the bank file. This option is unlikely to be available to you, but depending on the size of the bank file, you may wish to try. Typically, only large bank customers have access to this service.
Important process when creating bank files
Since an aba file cannot be regenerated, to avoid this problem in the future it is important to either:
Leave the above message on the screen until the necessary checks are made.
Answer No to this message if the necessary checks are delayed.
Check the following BEFORE answering Yes to the above message:
That the file was created to the path you specified.
That the file can be uploaded to your bank and paid without errors.
Once the above two checks have been completed you should answer Yes to Was the bank file created successfully?
If the file will not be uploaded to your bank for some time, then answer No to this question. You can easily rerun the process and answer Yes when the checks have been completed.
To create a new bank file
If you choose to create a new bank file, you'll need to reverse the payments created by the bank file so that a new bank file can be created. Do this by:
Reverse each payment in the bank file, refer to this article: Reverse a supplier payment.
Redo the Pay Selections process to create the new bank file, selecting to pay the same suppliers as in the original file. Refer to this article for more details: Generate an ABA Bank file for Supplier Payments.