List of SAP Tables (Cheat Sheet / Overview)
Since I have not found another place to put this 2 page cheat sheet (for consultants, developers, users) it is in this section. There are many useful lists of SAP tables on the web, but, for one reason or the other, I could not find one overview, which suits my own needs. So, finally I created my own list, including the most important SAP tables (functional and technical). It covers SAP-FI (currency, bank data, payment methods, calendar, taxes, accounting documents), SAP-CO (Cost center, cost elements, profit center) , ABAP, the Data Dictionary, User and System Administration, SAP Workflow, Number Ranges and some other SAP basis tables. Some examples which are included in the PDF:
SAP Tables Overview
| DD02L SAP Tables | DD03L Table Fields | DD04L Data elements | TADIR Directory of Repository Objects |
| VARID Variant for Reports | TFDIR Function Modules | T100 Messages | TSE05 ABAP Editor insert commands |
| USR03 User address data | USR02 Logon data | USR01 User master | USR21 Assign user address key [ADRP] |
| TLOCK Transports: Locks | DBTABLOG Log Records | PAT03 Hot packages | UE070 Header of Requests/Tasks |
| SNAP Snapshots: Runtime | TBTCO Jobs status | TBTCP Batch Input steps | ARCH_OBJ Objects for archive / reorg. |
| TCURC Currency codes | T056 Interest settlement | T012 House Banks | BNKA Bank Master |
| T043 Assign Accounting Clerks | T007A Tax Keys | T000 Clients | T059A Type of Recipient For Vendors |
| T006 Units of Measurement | T002 Language Keys | T005 Countries | T004 Directory of Charts of Accounts |
| AUFK Order master data | KNA1 Customer Master | LFA1 Vendor Master | AFKO Order header data PP orders |
| CSKA Cost elements (CoA) | COBK Document header | TKA01 Controlling areas | SKA1 G/L accounts (chart of accounts) |
| BKPF Accounting header | BSEG Document line | BSID Sec. index cust. | BSIK Secondary index vendors |
Please be invited to use this list and/or leave some suggestions for enhancement. However, out of experience, allow me to make one stipulation: although this cheat sheet is freely available, please refrain from uploading it to other servers.
The list starts with the most useful tables and the items are categorized: ABAP, Data Dictionary, FI, CO, Spool, Cost Center, Vendors (Creditor), Customers (Debitor), Banks, Taxes, Clients, Accounting, Payment methods etc.).
Below is a screenshot of the pdf, to show an overview of the structure (the list contains both customizing and operational tables):

Please feel free to download the corresponding 2 page cheat sheet » List of important SAP Tables as PDF (approx. 100 KB).
There are 4 Table-Types within the SAP System:
1. Tables which have technical control functions within the SAP system. They are maintained either by SAP or by users with special authorization.
2. Other tables contain basic commercial data (bank data, currency ...) or
3. the company structure (company codes, customer data ...).
4. And last but not least there are tables for application data, which contain business transactions and master data and are processed using SAP programs.
An overview of the most important SAP Tables for all these categories, as well as the necessary SAP Transaction Codes to maintain them, are provided on the linked pages.
List of Management / Business Abbreviations
Management
AIDA(S) - Attention, Interest, Desire, Action, Satisfaction
KISS - Keep it short and simple
Business version: Keep it Simple, Stupid
KPI - Key performance indicator
LOI - Letter of Intent
MBO - Management by Objectives
NPV - Net present value
PM - Project Manager
POC - Proof of Concept
POS - Point of sale
PQP - Project Quality Plan
RFI - Request for Information
RFP - Request for Proposal
RIP - Rest in Peace
ROI - Return on Investment
ROI - Region of Interest
SMART - Specific, Measurable,
Achievable, Relevant, Time-Specific
SOD - Statement of Direction
T&M - Time and Material
TCO - Total cost of ownership
TQM - Total Quality Management
UAT - User Acceptance Test
USP - Unique Selling Point / Proposition
WIP - Work in Process
Business
AP - Accounts Payable
AR - Accounts Receivables
BI / BW - Business Intelligence / Warehousing
BPM / CPM - Business / Corporate Performance Management
CoA - Charts of Accounts
CpD - Conto-pro-Diverse
DWH - Data Warehouse
CMS - Content Management System
CRM - Customer Relationship Management
ERP - Enterprise Resource Planning
GL - General Ledger
IMG - Implementation Management Guide
KM - Knowledge Management
SCM - Supply Chain Management
List of Technical / IT Abbreviations
ABAP - Advanced Business Application Programming
ASCII - American Standard Code for Information Interchange
API - Application Program Interface
BAPI - Business API
BAdI - Business Add-In
CASE - Computer Aided Software Engineering
DOM - Document Object Model
EAI - Enterprise Application Integration
GUI - Graphical User Interface
HTML - HyperText Markup Language
J2EE - Java 2 Enterprise Edition
JSP - Java Server Page
JRE - Java Runtime Environment
LUW - Logical Unit of Work
LIFO - Last in First Out
MVC - Model-View-Controller
ODBO - OLE DB for OLAP
OLAP - Online-Analytical-Processing
RFC - Remote Function Call
RFC - Request for Change / Comments
RPC - Remote Procedure Call
RSS - Rich Site Summary
RSS - Really Simple Syndication
SaaS - Software as a Service
SOAP - Simple Object Access Protocol
SOA - Service-oriented architecture
SSL - Secure Sockets Layer
SVG - Scalable Vector Graphics
TCP - Transmission Control Protocol
UML - Unified Modeling Language
VPN - Virtual Private Network
XML - Extensible Markup Language
Proverbs & Idioms & Sayings