Message type: E = Error
Message class:  FIOM_LOC - Oman Localization 
Message number: 017
Message text: Please specify a Bank Sub Account
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 FIOM_LOC017, which states "Please specify a Bank Sub Account," typically occurs in the context of financial transactions involving bank accounts in the SAP system. This error indicates that the system requires a specific bank sub-account to be defined for the transaction you are trying to process.
Cause: Missing Bank Sub Account: The most common cause of this error is that the bank sub-account field is not filled in the transaction you are trying to execute. This could happen if the configuration for the bank account does not include a sub-account or if the user did not enter it during the transaction.
Configuration Issues: There may be issues with the configuration of the bank accounts in the system, such as missing or incorrect settings in the bank master data. Transaction Type Requirements: Certain transaction types may require a bank sub-account to be specified, and if it is not provided, the system
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
FIOM_LOC016 Please do not enter a Vendor Account
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
FIOM_LOC015 Please specify a Bank Account
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
FIOM_LOC018 Customizing for Processing Type 1 missing
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
FIOM_LOC019 Document entered is not a valid remittance document
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.