When closing Project Controller you receive a message that open batches exist in AP, AR, or GL. You can go back to those modules, and print the following reports to find the open batches.
General Ledger: Print the GL Batch Register Summary format, and update the period range to go back through the year. A selection on batch.status in ('S','U','H','B') can be used to pull up GL batches that are still open.
Accounts Receivable: Print the AR Batch Register Summary format, and update the period range to go back through the year. A selection on batch.status in ('S','U','H','B') can be used to pull up AR batches that are still open.
Accounts Payable: Print the AP Batch Register Summary format, and update the period range to go back through the year. A selection on batch.status in ('R','K','S','U','H','B') can be used to pull up AP batches that are still open. There is also an Unreleased AP Batches report that can be used.