In some cases, the system asks for a recount. In other cases, the difference remains open even after the count is completed. Sometimes an error appears during posting, but it is not clear whether the issue is related to EWM configuration, stock data, or ERP integration.

Here are the observations:

• Physical inventory document is created successfully in SAP EWM
• Stock count is entered through RF or SAP GUI
• A difference is visible between book quantity and counted quantity
• Difference posting does not complete, remains open, or shows an error
• Stock is still unchanged after posting is attempted
• There may be no clear queue or delivery-related error

I would like to understand the possible reasons and troubleshooting steps.

Please help with the following points:

• What are the prerequisites for posting a physical inventory difference in SAP EWM?
• What is the difference between count, recount, difference analysis, and difference posting?
• Which physical inventory document statuses must be completed before posting?
• Can open warehouse tasks, stock locks, handling units, or pending deliveries block difference posting?
• How do tolerance groups and recount settings affect the process?
• How can we identify whether the issue is in EWM, ERP posting, or qRFC integration?
• Which transactions, application logs, and nodes in /SCWM/MON should be checked?
• What are the common error messages during physical inventory difference posting and how can they be resolved?
• What is the correct process to reverse or correct a wrongly posted inventory difference?

A step-by-step troubleshooting guide with SAP EWM configuration paths, relevant transaction codes, and a real project example would be very helpful.