Process Flow From SAP Basis Prespective During Logon and Transaction

Process Flow (LOGON)

1. User requests
2. Dispatcher handles the request
3. Keeps in queue and assign WP based on FIFO
4. The work process gets the username, password, client, logon language and the task handler interprets and hand over the task to the database process.
5. The DB process checks the credentials of the user and provides the necessary authorizations to the process.
6. The entire information is copied into the user context which is referred as ROLL OUT. (The information is copied into Roll Area which is subsequently available for all the requests made by the user)

The user context remains until the user is logged out. The user context is displayed in the transaction SU56. If the user accesses other than the transactions in SU56 it is missing authorizations and displayed from the Tcode SU53 (Missing Authorizations

Process Flow (TRANSACTION)

1. User executes a transaction Eg: ME22N – Purchase Order (or) VA01 – Sales order
2. The request is handled by dispatcher and hand over to the work process.
3. Work process requires information that is not available in the work process. The work process copies the user related information into the task handler i.e. copy user context into the Task Handler. It is also referred as ROLL IN
4. Further processing continues

If you like this post, you may as well like these too:

1. Sales and Distribution Transaction Process Flow Here is the sales and distribution transaction process flow file in a much bigger format in PDF, click here to download this ....
2. SAP Material Master Process Flow SAP Material Master Process Flow – Step by Step Process. usually, this would be somewhere close to the actual process flow followed by each and every organization. 1. Material Determination:...
3. MM / PP Process Flow ...
4. Relevant Basis Transaction Codes Relevant Basis transaction codes for First steps Software Logistics Client Administration User & Authorization Background Processing Update Output Configuration & Administration Data Archiving Data Transfer & Exchange Instance Maintenance System...
5. Document Flow in SAP SD The sales documents you create are individual documents, but they can also be part of a series of related documents. For example, If you save a telephone inquiry in the...
6. Transaction Code to Access Other Transaction Code with Values Many times in SAP, you may come across situations where in the users wants to have a separate transaction codes for some of the tables which can be easily maintained...
7. SAP Tips : Finding a transaction Many times you tend to forget the transaction code for a particular program. So how do we find the transaction code quickly. Just remember one transaction ‘SEARCH_SAP_MENU’ and the table...
8. Relevant SAP Transaction Codes to Remember First Steps: AL08 List of All Users Logged On RZ20 CCMS Monitor Sets SA38 ABAP Program Execution SCC4 Display View “Clients” SE11 ABAP Dictionary SE16 Data Browser SE38 ABAP Editor...