Message type: E = Error
Message class:  FG_ACC_BNKTRN -  
Message number: 000
Message text: Specify paying company code, house bank, and bank subaccount
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 FG_ACC_BNKTRN000 indicates that certain mandatory fields are not filled in when trying to process a bank transaction. Specifically, it requires the specification of the paying company code, house bank, and bank subaccount.
Cause: This error typically occurs in the following scenarios: Missing Data: The required fields (paying company code, house bank, and bank subaccount) are not filled in the transaction or document you are trying to process.
Configuration Issues: There may be issues with the configuration of the house bank or bank accounts in the system. User Input Error: The user may have overlooked entering the necessary information in the transaction screen.
Solution: To resolve this error, you can take the following steps: Check Input Fields: Ensure that you have entered the paying company code, house bank, and bank subaccount in the relevant fields of the transaction. If you are using a custom transaction or program, verify that the fields are correctly mapped and populated. Configuration Verification: Go
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
FGV620 The dates refer to the Gregorian calendar
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
FGV619 & period entries 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...
FG_ACC_RECBNK000 Specify company code, house bank, and clearing account
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
FG_APP_PATTERN000 Approval sequence ô0 - non-sequentialö is not permitted
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.