3335891 - Source Document changed by Technical User (SAP_SYSTEM) user

You notice a source document, for example a supplier invoice got changed by the Technical User (SAP_SYSTEM) user. You wonder why the document was changed and why by this user. 

SAP Business ByDesign

1. Go to the General Ledger work center .
2. Access the Source Documents view.
3. Search for the respective source document.
4. In the Details section, under Administrative Data you notice the  Technical User (SAP_SYSTEM) in the Changed By field.

• When a document is sent from an application area to accounting it appears as source document in the General Ledger work center. 
• Financial accounting then performs specific checks to ensure the source document can be posted. 
• One of these checks failed so that the source document remains unposted in the Source Documents view (for example, a customer project list arrives to accounting before its associated expense document has arrived to accounting).
• The SAP ByDesign system schedules a mass data run (MDR) every night, called Period Closure Run, scheduled by SAP under the name Technical User (SAP_SYSTEM) to repeat the above posting relevant checks. The run ensures that there are no delays in processing financially relevant data.
• If all checks are passed at this point, the document gets posted. 
• So, any changes made by user Technical User (SAP_SYSTEM) are automatically scheduled jobs.

To find the Period Closure Run: 

1. Go to the Application and User Management work center. 
2. Navigate to the Background Jobs view. 
3. Open the Advanced Search. 
4. Select All Scheduled Jobs. 
5. In the Run Type field enter Period Closure Run. 
6. Press Go. 

SAP_SYSTEM, change, log, Technical User , KBA , SRD-FIN-GL , General Ledger , How To