Hi Nadine, it is interesting that you are getting different error messages in your production and test systems, even though the systems have been mirrored and the customizing should be identical. Here are some points you could check to solve the problem: 1. Synchronization of the systems: Even though the systems have been mirrored, check that any subsequent changes in customizing or system settings, including period opening, have been made identically in both systems after mirroring. Sometimes minor differences, especially in the financial accounting settings, can lead to such discrepancies. 2. Analyze error messages: - F5286: This message indicates that period 003/2025 is not open for the corresponding general ledger (251150) and for account type K (accounts payable) - F5201: This message also signals that the posting period is not open, but refers more generally to the posting period and not specifically to the account. 3. Check period opening: - Go to transaction OB52 or use the corresponding transaction for opening and closing posting periods in your SAP system. Check there whether the posting period 003/2025 for the vendors (account type K) and the corresponding general ledger is opened correctly - Make sure that these settings are the same in both systems. 4. Transfer and synchronization problems: - It is possible that errors may occur when transferring system settings from one system to another. Check that all relevant settings have been transferred correctly during mirroring. This can sometimes be overlooked, especially with settings that are not changed regularly. 5. Cache and temporary data: - Sometimes temporary data or caches can store old configurations and lead to such problems. Try clearing the cache or restarting the system to see if the problem persists. 6. Differences in permission roles: - Check if the permissions of the users are identical in both systems. Sometimes different permissions can lead to different behaviors. If you have done all these steps and the problem persists, it might be useful to analyze more detailed logs or trace files to identify deeper differences between the systems. I hope this helps you! Best regards, [your name]
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