Why can I edit some Bill Credits and not others

AI generated answer (using internal Slack threads):

The ability to edit Bill Credits in NetSuite can depend on several factors: 1. Status of the Period: If the Bill Credit is in a closed period, you may not be able to edit it. However, you can still apply it to a bill in an open period. This is because the application of a Bill Credit is considered a non-GL change, which is allowed even in closed periods if the "Allow non-GL changes" checkbox is enabled. 2. Application of the Bill Credit: If a Bill Credit has been applied to a bill payment, it may not trigger its own user event. This is because the Bill Credit is considered a secondary record in this context, and changes to secondary records do not trigger scripts. 3. Design of the Payment Process: When receiving a customer payment, you have the option to select invoices and credits. However, once the payment is saved, only the invoices tab shows up for editing. This is by design. The application of a credit is on the credit and not the payment, so if you want to change the application, you have to edit the credit that was applied and unapply it. ****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ******