Symptom
When using serial number XYZ in your logistics business, an unexpected error "Serial number XYZ does not exist in inventory" is reported. Based on the master data of serial number XYZ, the problem is related to the production order that previously used this serial number. The production confirmation for the make task has been reversed, but the Tagged Inventory Status is Issued to Production.
Environment
SAP Business ByDesign
Reproducing the Issue
- Go to the Service Entitlements Work Center
- Navigate to the Registered Products View
- Search for the serial number XYZ
- Choose the Edit button
- In the General Tab, you notice the Tagged Inventory Status is Issued to Production
- Navigate to the Detailed Inventory Tracking Tab, you notice that the latest movement is a record for Production Lot
- Open the Production Lot
- Go to the Confirmations Tab, you notice that a Reversal Confirmation is created for the standard confirmation
Cause
CASE 1: There is a supply task in the production process. The user only reversed the production confirmation for the make task and forgot to reverse the production confirmation for the materials in the supply task.
CASE 2: This is a a limitation in a scenario where the supply task does not exist in the production process: When confirming a production task, there is insufficient source logistics area stock recommended by the system for the other input items, resulting in an error reporting like ‘Negative stock not allowed’. The user then adjusts the source logistics area with sufficient stock according to the error and saves the document and the warehouse task is confirmed successfully. But when the user reverses the confirmation, it comes up with this problem.
Resolution
CASE 1: When you reverses the production confirmation for the supply task, the serial number XYZ will return to stock and can be used in other logistics operations.
CASE 2: To overcome this situation please do not to go forward with the transaction when you get the negative stock error, instead please use the close button to come out of the transaction, verify the correct logistic area, quantity in the stock overview and then redo the transaction. However, even if you find yourself continuing with the transaction for some reason, to fix the issue please create a case for the affected serial numbers and authorize SAP to do the necessary correction from backend.
See Also
Serial Number Does Not Exist in Inventory, Reverse Confirmation, Issued to Production, Tagged Inventory Status, Detailed Inventory Tracking
Keywords
KBA , AP-IP-INV , Inventory , AP-PE-LOT , Production Lot , Known Error
SAP Knowledge Base Article - Public