Message type: E = Error
Message class:  OIJ_TSW_07 - Message Class for Ticketing APP developments 
Message number: 059
Message text: Negative quantity is not allowed; Enter a valid quantity
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 OIJ_TSW_07059, which states "Negative quantity is not allowed; Enter a valid quantity," typically occurs in the context of transactions involving inventory management, order processing, or similar activities where quantities are involved. Here’s a breakdown of the cause, potential solutions, and related information:
Cause: Negative Quantity Entry: The most straightforward cause is that a user is attempting to enter a negative quantity for a transaction that does not allow it. This could happen in various scenarios, such as: Creating or modifying an order. Adjusting inventory levels. Processing a sales order or purchase order. Business Rules: The system is configured to prevent negative quantities due to business rules or logic that dictate that quantities must always be zero or positive. Data Entry Error: It could also be a simple data entry mistake where the user accidentally inputs a negative value.
Solution: Check Input Values: Review the quantity field in the transaction where the error occurred. Ensure that
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
OIJ_TSW_07058 End date is less than Start date
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
OIJ_TSW_07057 Pegging usage type &1 does not exist
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
OIJ_TSW_07060 Posting date is less than End date
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
OIJ_TSW_07061 Notification sent successfully
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.