can you have a negative credit memo

AI generated answer (using internal Slack threads):

In NetSuite, a Credit Memo is inherently a negative transaction. It reduces the customer's open A/R balance and decreases income. However, the overall document (including a Credit Memo) must be positive or zero. This means that while you can have negative lines within the document, the total amount of the document cannot be negative. If you need to create a negative impact on the General Ledger, you would need to generate a reversal document type that corresponds with the original document you used. For example, if you started with a Cash Sale, you might recommend a Cash Refund instead of a Credit Memo, depending on the scenario. Please note that while you can show the amount on a Credit Memo record as negative in a PDF or a saved search (using amount(signed)), it may not be possible to do so on the record itself. ****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ******