how can I set inventory detail in pending fullfillment order.

AI generated answer (using internal Slack threads):

To set inventory detail in a pending fulfillment order, you can use SuiteScript. However, it's important to note that this can only be done when you fulfill the order. The inventory details are a subrecord and can be set on the Sales Order, but it's not required like in Item Fulfillments or Invoices. If you're using serialized inventory (or similar), the inventory detail information must be provided either on the Item Fulfillment, or on the Sales Order if you are not going through a fulfillment. If you try to do it in the UI without providing this information, you'll likely encounter an error. If you're looking to fill in the inventory detail via a client script, you can do so on the Item Fulfillment module with a client trigger. Before setting up the inventory detail, you should validate if the inventory number is already assigned to that item. Here is a link to the NetSuite Help Center that provides more information on Supported Deployments for Subrecord Scripting: https://system.na0.netsuite.com/app/help/helpcenter.nl?fid=section_4712495741.html ****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ******