Message type: E = Error
Message class:  8N1 - Messages for Accounting (Greek Localization) 
Message number: 051
Message text: For official run, a greek logon is required
Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.
To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.
Unfortunately, there isn't any extra information in this error notice.
First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).
Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.
You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.
The SAP error message 8N1051 indicates that a Greek logon is required for an official run. This typically occurs in systems that are configured to handle specific legal or regulatory requirements, such as those in Greece, where certain processes must be executed under a specific user profile or language setting.
Cause: User Profile: The user attempting to execute the transaction does not have the necessary profile or authorization to perform the action in the required language (Greek). Configuration Settings: The system may be configured to enforce that certain transactions or reports can only be run by users with a Greek logon. Legal Compliance: This error is often related to compliance with local laws and regulations that require official documents or reports to be generated in the local language.
Solution: Log in with a Greek User: Ensure that you log in to the SAP system using a user account that has a Greek logon. This may involve
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
8N1050 Next official run of company & is for & & &
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
8N1045 No group chart has been defined for company &
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
8N1052 For official run, exactly one company code must be defined
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
8N1053 Exactly one company code must be defined
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
Click on this link to search all SAP messages.