is transaction number auto generated? it has a prefix of CUSTINVC for invoices

AI generated answer (using internal Slack threads):

Yes, the transaction number is auto-generated in NetSuite. The prefix "CUSTINVC" for invoices is part of the auto-numbering feature in NetSuite. This feature allows you to have a unique identifier for each transaction. However, it's important to note that the auto-numbering feature can be influenced by certain actions. For instance, if the document number field is editable and a user manually enters a number, this will cause the auto-generation to move to the next number after what the user manually entered. Also, if you have enabled Subsidiary-Specific Transaction Auto-Numbering, the numbers may reset to 1 and seem to have a different increment tracker for each Subsidiary. The Subsidiary prefix may also come AFTER the Transaction Number prefix. To achieve a specific naming convention using AutoNumbering, you can disable numbering by subsidiary, readjust the invoice number to have only a basic number, and use a workflow to set field value. Remember, having Auto Numbering enabled does not prevent the modification of the tranid. ****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ******