Message type: E = Error
Message class:  FCO_AVC_CC - Availability Control: Cost Centers 
Message number: 107
Message text: Posting date couldn't be determined. Please contact SAP.
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 FCO_AVC_CC107: Posting date couldn't be determined. Please contact SAP typically occurs in the context of the SAP system when there is an issue with determining the posting date for a financial transaction. This can happen in various modules, including Controlling (CO) and Financial Accounting (FI). Causes: Missing Configuration: The posting date may not be configured correctly in the system settings, or there may be missing entries in the relevant configuration tables. Date Settings: The system may not have a valid posting period open for the date being used in the transaction. Document Type Issues: The document type being used may not be set up correctly to allow postings for the specified date. User Authorizations: The user may not have the necessary authorizations to post in the specified period. System Errors: There could be a temporary system error or inconsistency in the database that is preventing the posting date from being determined. Solutions: Check Configuration: Verify
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
FCO_AVC_CC106 Specify valid crcy type in budget availiabilty ctrl prfl configuration.
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
FCO_AVC_CC105 Specify the planning category that should be copied.
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
FCO_AVC_CC108 Specify the controlling area for your plan data.
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
FCO_AVC_CC109 Specify the fiscal year for your plan data.
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.