• Provides tutorials for the custom development of your SAP system
• Covers validations and substitutions, user exits, BTEs, BAdIs, and implicit enhancements
• Includes discussions on report development, accounting document processing, workflows, and more

With this book, you learn how to create custom enhancements to standard ABAP code in Financial Accounting for SAP, which will allow you to address all corporate and/or country-specific business rules. The author takes a systematic approach to the topic, introducing general information about the subject of enhancements, and then offering specific coding tutorials consisting of step-by-step instructions and screenshots. Thanks to clear and concise instructions as well as numerous tips and tricks, you'll quickly learn how to find the appropriate enhancement for a particular problem, use all available data, and avoid common programming errors.

Enhancing the Standard System
Learn what functionalities are available for enhancing the standard system, and how to choose the right one.

Corporate and/or Country-Specific Business Rules
Explore the process of creating enhancements that will enable you to adhere to specific corporate and/or country-specific business rules.

Interfacing with Third Parties
Understand your options for custom enhancements that relate to exchanging data with external systems (banks, vendors, and customers).

BTEs and BAdIs
Learn how business transaction events and business add-ins can be used to enhance standard Financial Accounting functionality.

Practical, Systematic Approach
Benefit from detailed explanations and a systematic approach that will teach you how to develop custom ABAP programs to modify the SAP standard.

Highlights

• Enhancements in reports
• Validations and substitutions
• BTEs and BAdIs
• Posting to Financial Accounting
• External accounting document
• Processing
• Workflow as a user exit

The Author

Sergey Korolev graduated from Moscow State University in the former USSR, and has worked as a software engineer since 1984. In 1999, he started his SAP career as an ABAP and Workflow developer and consultant. Since 2007, he has been working as a freelancer providing services for various international clients, including SAP itself.

Table of Contents

• ... Introduction ... 13
• ... Acknowledgments ... 15
• 1 ... Enhancement Types ... 17
• 1.1 ... Customer Enhancements (CMOD/SMOD) ... 17
• 1.1.1 ... Function Module Exit ... 18
• 1.1.2 ... Menu Exit ... 19
• 1.1.3 ... Customer Exit Subscreen ... 20
• 1.1.4 ... Finding Customer Enhancements ... 21
• 1.1.5 ... Enhancements Summary ... 23
• 1.2 ... Business Transaction Events (BTE) ... 24
• 1.2.1 ... Events and Processes ... 24
• 1.2.2 ... Configuration ... 25
• 1.2.3 ... Finding Business Transaction Events ... 30
• 1.2.4 ... Business Transaction Events Summary ... 31
• 1.3 ... Business Add-In (BAdI) ... 31
• 1.3.1 ... Classic BAdI ... 32
• 1.3.2 ... Kernel-Based BAdI ... 34
• 1.3.3 ... Filtered BAdIs ... 35
• 1.3.4 ... BAdI Subscreen and Function Codes ... 36
• 1.3.5 ... Finding BAdIs ... 37
• 1.3.6 ... BAdI Summary ... 37
• 1.4 ... Implicit Enhancements ... 38
• 1.5 ... Summary ... 38
• 2 ... Master Data Enhancements ... 39
• 2.1 ... General Ledger Accounts ... 39
• 2.1.1 ... Main Transaction Codes for General Ledger Account Master Data ... 40
• 2.1.2 ... Data Enhancement of General Ledger Account Master Data Tables ... 41
• 2.1.3 ... Screen Layout Enhancement ... 52
• 2.1.4 ... Other Enhancements Available in General Ledger Account Master Data ... 65
• 2.1.5 ... General Ledger Summary ... 67
• 2.2 ... Accounts Payable and Accounts Receivable ... 68
• 2.2.1 ... Maintenance Transactions ... 68
• 2.2.2 ... Data Enhancements ... 68
• 2.2.3 ... Screen Layout Enhancements ... 71
• 2.3 ... Accounts Receivable (Customers) ... 72
• 2.3.1 ... Define Your Own Subscreen ... 72
• 2.3.2 ... Define Tabstrip Layout (Customer Screen Group) ... 74
• 2.3.3 ... Activating a Screen Group via a BAdI Implementation ... 76
• 2.3.4 ... Linking Your Own Subscreen ... 79
• 2.3.5 ... Making the Screen Field Transaction Mode Aware and Updatable ... 81
• 2.3.6 ... Calling Moments of BAdI Methods ... 84
• 2.3.7 ... GUI Status Enhancement with Open FI (BTE) ... 87
• 2.3.8 ... Other Open FI (BTE) Events ... 90
• 2.3.9 ... Function Module Exits ... 91
• 2.4 ... Customer Credit Management Data and Screen Enhancement ... 91
• 2.4.1 ... GUI Status Enhancement ... 92
• 2.4.2 ... Data Enhancement ... 93
• 2.4.3 ... Status Screen Enhancement ... 93
• 2.4.4 ... Defining and Activating Partner Products in Transaction FIBF ... 96
• 2.4.5 ... Setting External Partner Functions ... 97
• 2.4.6 ... Further GUI Status Enhancement with Table T061V ... 99
• 2.4.7 ... Additional Credit Management Data User Exits ... 102
• 2.5 ... Accounts Payable (Vendors) ... 102
• 2.5.1 ... Screen and GUI Status Enhancement with Function Group FARI ... 103
• 2.5.2 ... BAdI Definitions ... 106
• 2.5.3 ... Business Transaction Events ... 109
• 2.5.4 ... Function Module Exits ... 109
• 2.6 ... Summary ... 110
• 3 ... Posting to Accounting ... 111
• 3.1 ... The Technical Structure of an Accounting Document ... 111
• 3.1.1 ... The Header ... 112
• 3.1.2 ... Items ... 113
• 3.1.3 ... Parked Document Tables ... 115
• 3.1.4 ... Secondary Indices ... 116
• 3.1.5 ... Total Tables ... 117
• 3.2 ... Core Program Modules of Accounting ... 121
• 3.2.1 ... Screen Enhancement of Accounting Posting Transactions ... 121
• 3.2.2 ... Screen Enhancement of General Ledger Posting Enjoy Transactions with BAdI ... 127
• 3.2.3 ... Screen Enhancement of Customer or Vendor Enjoy Transactions with BAdI ... 130
• 3.3 ... Accounting Document Data Enhancement ... 135
• 3.4 ... Data Processing Enhancements during Dialog Processing ... 137
• 3.4.1 ... Data Processing BTEs ... 137
• 3.4.2 ... BTE Processes ... 138
• 3.4.3 ... BAdI ... 139
• 3.4.4 ... Substitutions and Validations ... 140
• 3.5 ... Data Processing Enhancements during Document Saving ... 143
• 3.5.1 ... BTE Events ... 144
• 3.5.2 ... BTE Processes ... 145
• 3.5.3 ... BAdIs ... 146
• 3.6 ... SAP Internal Techniques for Processing Accounting Data Flow (RWIN) ... 146
• 3.6.1 ... RWIN Summary ... 148
• 3.7 ... Differences in Data Processing between Dialog Transactions and Program Functions ... 148
• 3.7.1 ... Additional BAdI AC_DOCUMENT ... 149
• 3.7.2 ... BTEs That Are Not Called ... 149
• 3.7.3 ... Ending BTE 00001050 (POST DOCUMENT: Accounting Interface) ... 149
• 3.8 ... Summary ... 149
• 4 ... Enhancements in Reports ... 151
• 4.1 ... Technical Architecture of the Line-Item Report ... 151
• 4.1.1 ... Header and Footer Output Enhancement ... 153
• 4.1.2 ... Menu Enhancement with BTE Events ... 156
• 4.1.3 ... Menu Enhancement with BAdI ... 157
• 4.1.4 ... Output Layout Enhancement ... 161
• 4.2 ... New SAP General Ledger Account Line-Item Report Enhancements ... 163
• 4.2.1 ... Header and Footer Output Enhancement ... 164
• 4.2.2 ... Extended Authorization Check ... 164
• 4.2.3 ... Menu Enhancement ... 164
• 4.2.4 ... Enhancing the Output Layout ... 165
• 4.3 ... Summary ... 166
• 5 ... Inbound Scenarios in Financial Accounting ... 167
• 5.1 ... Master Data Migration and Distribution ... 167
• 5.1.1 ... Batch Input ... 167
• 5.1.2 ... HR Master Data ... 177
• 5.1.3 ... ALE/IDoc ... 178
• 5.2 ... Postings Inbound Scenarios ... 186
• 5.2.1 ... Batch-Input or Direct Input ... 186
• 5.2.2 ... Payroll Results ... 187
• 5.2.3 ... Postings via IDoc ... 188
• 5.2.4 ... Electronic Bank Statement ... 189
• 5.3 ... Summary ... 195
• 6 ... Outbound Scenarios in Financial Accounting ... 197
• 6.1 ... Master Data Distribution ... 197
• 6.1.1 ... Batch Input ... 197
• 6.1.2 ... ALE/IDoc tools ... 198
• 6.2 ... Dunning ... 203
• 6.2.1 ... BTEs in Transaction F150 ... 203
• 6.2.2 ... BTEs during the Dunning Run ... 207
• 6.2.3 ... Dunning Summary ... 216
• 6.3 ... Payment Program ... 216
• 6.3.1 ... User Exits in Transaction F110 ... 217
• 6.3.2 ... User Exits in Payment Program SAPF110S ... 219
• 6.4 ... Summary ... 224
• 7 ... Workflow as a User Exit ... 227
• 7.1 ... Workflow Events: Linking System Actions with External Applications ... 228
• 7.1.1 ... Event Handling ... 228
• 7.1.2 ... Event Creation Options ... 231
• 7.1.3 ... Application Development Implications ... 231
• 7.2 ... Practical Example ... 232
• 7.2.1 ... Prerequisites ... 232
• 7.2.2 ... Workflow-Enabled Class ... 233
• 7.2.3 ... Standard Task ... 236
• 7.2.4 ... Event Creation ... 240
• 7.2.5 ... Now Test! ... 241
• 7.3 ... Summary ... 243
• ... The Author ... 245
• ... Index ... 247