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I could not duplicate your scenario (on sample data) with Other Charges not being updated when posting an invoice from Adagio Invoices, using the current version, when the 'tax transfer to JC' was disabled, and Adagio JobCost was the interface in AR. I also could not duplicate the situation that the 'tax transfer to JC' option was inaccessible within Adagio Invoices, when AR is interfaced to Adagio JobCost. We'd need more information on your setup and interfaces defined in all 3 applications.