A. To manage your accounting and tax reporting without a direct interface, you can export your financial data from Lightspeed in a compatible format (like CSV or Excel). Once exported, you can manually import this data into DATEV. Make sure to check the DATEV documentation for the required format and fields needed for a successful import.

B. Consider using third-party integration tools or middleware that can connect Lightspeed with DATEV. Tools like Zapier or Integromat can help automate the data transfer process, reducing the manual effort required.