how to unapply bill and bill credit? it is giving unexpected error

AI generated answer (using internal Slack threads):

To unapply a bill and bill credit, you can follow these steps: 1. Navigate to the bill payment record that you want to unapply. 2. Click on the 'Bill Payments' subtab. 3. You will see a list of bills that this payment has been applied to. Uncheck the 'Apply' checkbox for the bill that you want to unapply. 4. Click 'Save'. If you are getting an unexpected error, it could be due to several reasons. One common reason is that the period in which the bill payment was made is closed. In this case, you would need to reopen the period, unapply the bill payment, and then close the period again. For bill credits, the process is similar: 1. Navigate to the bill credit record. 2. Click on the 'Apply' subtab. 3. You will see a list of bills that this credit has been applied to. Uncheck the 'Apply' checkbox for the bill that you want to unapply the credit from. 4. Click 'Save'. Again, if the period is closed, you would need to reopen it before you can unapply the bill credit. ****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ******