Multi-location Inventory Error (MLI_LOCATION_REQUIRED): this transaction or its items must have locations. when editing Bills

AI generated answer (using internal Slack threads):

****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ****** The error message "*Multi-location Inventory Error (MLI_LOCATION_REQUIRED): this transaction or its items must have locations.*" typically occurs when the Multi-Location Inventory feature is enabled in your NetSuite account and the location field in the transaction or its items is not set. To resolve this issue, you need to ensure that the location field is displayed on your form and that it has a value. You can customize your form to include the location field by going to the top right of your form, clicking on 'customize', then 'customize form', and adding the location field. The location can be shown at either the body or line level. If you are dealing with an intercompany fulfillment, you might need to check the 'Is Autogenerated Representing Entity' field on the customer record. An intercompany item fulfillment is used when the customer is one of your own subsidiaries. Please note that if the Multi-Location Inventory feature is enabled, locations become mandatory in bills, invoices, etc. It can also be mandatory due to a workflow or script.