what causes this error when running the reclassification journal entry process Journal entry lines do not sum to zero. Reclassification failed for the following revenue arrangements

AI generated answer (using internal Slack threads):

The error "Journal entry lines do not sum to zero. Reclassification failed for the following revenue arrangements" typically occurs when there is a disbalance between deferred revenue and unbilled AR. This can happen if the Reclassification journals, which should be run monthly after your revenue recognition journals, have not been run. The reclassification process is related to actual Revenue Arrangements (RAs), not revenue recorded via regular journal entries. If the lines represent a transaction from another system due to acquisition, and the ARM reclass function can only handle reclassifying legacy sales orders and RAs which don't exist since this is a Journal Entry, then you might encounter this error. Also, if Revenue Elements are not being attached to Revenue Arrangements, or if the Revenue Amount is empty when it should match the Sales Amount, this could potentially lead to issues with the reclassification process. This could be due to the order of operations, such as a line being billed immediately after its creation, with the Revenue Element for said line being created days later. ****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ******