Message type: E = Error
Message class:  /SAPAPO/SALES -  
Message number: 507
Message text: Customer requirement &4: Requirement deleted in SAP APO &1 &2
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 /SAPAPO/SALES507 indicates that a customer requirement has been deleted in SAP Advanced Planner and Optimizer (APO). This message typically arises in the context of demand planning and sales order processing, where customer requirements are crucial for planning and execution.
Cause: The error message can occur due to several reasons: Manual Deletion: The customer requirement may have been manually deleted by a user in the system. Data Consistency Issues: There may be inconsistencies in the data between SAP APO and the source system (like SAP ERP). Integration Issues: Problems in the integration between SAP ERP and SAP APO can lead to the deletion of customer requirements. Planning Version Issues: The requirement might be associated with a planning version that has been changed or deleted. Time Period Issues: The requirement may fall outside the planning horizon or time period defined in the system.
Solution: To resolve the error, consider the following steps: Check Deletion Logs: Review the logs
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
/SAPAPO/SALES506 Customer requirement &4: Requirement added in SAP APO &1 &2
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/SAPAPO/SALES505 Customer requirement &4: Requirement adopted in SAP APO
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/SAPAPO/SALES508 Customer requirement &4: Requirement changed in SAP APO &1 &2
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/SAPAPO/SALES509 Customer reqmnt &4: Not in LC table ORDKEY; method changed from &1 to &2
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.