How can I resolve this error on an invoice? "This promotion has been already added. A promotion can only be added once."

AI generated answer (using internal Slack threads):

The error message "This promotion has been already added. A promotion can only be added once." is typically encountered when a promotion is being applied more than once to a single transaction. This could be due to a configuration issue or a problem with the way the promotion is being applied. Here are some steps you can take to resolve this issue: 1. Check the Promotion Configuration: Ensure that the promotion is set up correctly. It should be set to auto-apply and the 'Coupon Code Type' should be set to 'Multiple Uses' if it's not a one-time promo. Also, make sure that the 'Audience' subtab is set to 'Everyone' for all customers. 2. Check the Transaction Configuration: When creating a Sales Order (SO), the 'Automatically Apply Promotions' checkbox under the 'Promotions' subtab should be automatically checked. This should trigger the automatic adding of the discount regardless of the customer after selecting the item. 3. Check the Application of the Promotion: Make sure that the promotion is not being manually added more than once to a single transaction. If the promotion is set to auto-apply, it should automatically apply to eligible transactions without needing to be manually added. 4. Check the Item Configuration: If the promotion is being applied at the item level, ensure that the item is set up correctly to allow the promotion. If necessary, you could consider adding the discount to a pricing list within the items being discounted. 5. Check the SuiteBilling Configuration: If your invoices are being generated through subscriptions in SuiteBilling, ensure that the promotion is being correctly applied during the invoice generation process. Remember, each promotion should only be applied once per transaction. If a promotion needs to be applied multiple times (for example, a buy 2 get 1 free promo where the customer buys 9 items), the value of the discount should increment each time it is applied, rather than the promotion being added multiple times. ****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ******

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