The below gives an idea of what solutions can be proposed for Data Conversion.

Base assumptions

  1. Data Conversion approach is well defined and understood by all parties involved
  2. Mapping between legacy data and SAP structures has been completed
  3. Sample files are ready for performing unit testing
  4. One set of source structures is used1
  5. Analysis and Design correspond to the time required for reviewing the approach/mapping and proposing a solution
  6. Construction is the time necessary to build the LSMW object
  7. Unit Testing corresponds to the time necessary to load the set of sample files into the development client

Complexity factors

The complexity of a Data Conversion object depends on multiple criteria whose most important are:

  1. Data quality of source files
  2. Number of source files
  3. Existence of a standard LSMW method/object, BAPI or ALE message type
  4. Complexity of the mapping between the legacy data structures and the SAP data structures (complex algorithms…)

Estimation metrics

Estimation metrics are usually based on complexity factors (Low , Medium, High).
Figures below are purely indicative and should be adapted to customer’s requirements.

Complexity / Phase Analysis & Design Construction Unit Testing
Low 0.5 day 1 day 2 days
Medium    1 day    2 days    3 days
High    2 days    3 days    5 days

Low

   Object    Comments
   FI01 – G/L Account    ALE method, creation+extension, 1 source structure
   FI02 – Secondary Cost Element    ALE method, creation, 1 source structure
   FI03 – Activity Type    ALE method, creation, 1 source structure
   FI05 – Profit Center    ALE method, creation, 1 source structure
   FI06 – Cost Center    ALE method, creation, 1 source structure
   FI07 – Bank Master    Custom recording, creation, 1 source structure
   FI11 – Internal Order    Custom recording, creation, 1 source structure
   MM06 – Storage Bin    Custom recording, creation, 1 source structure
   MM10 – Control Cycle    Custom recording, creation, 1 source structure

Medium

   Object    Comments
   FI04 – Fixed Asset    Standard DI method, creation, 1 source structure
   FI08 – G/L Opening Balance    Standard BI method, creation, 1 source structure
   FI09 – A/P Open Item    Standard BI method, creation, 1 source structure
   FI10 – A/R Open Item    Standard BI method, creation, 1 source structure
   FI12 – Activity Price    ALE method, creation, 1 source structure
   MM02 – Material Classification    Standard BI method, creation, 1 source structure
   MM04 – Purchase Info Record    Standard BI method, creation, 1 source structure
   MM07 – Inventory Stock    Standard BI method, creation, 1 source structure
   MM08 – Warehouse Stock    Standard BI method, creation, 1 source structure
   PP02 – Bill of Materials    Standard BI method, creation, 1 source structure
   SD05 – Customer Material Info Record    Standard BI method, creation, 1 source structure
   SD02 – Credit Master    Custom recording, creation, 1 source structure
   SD03 – Customer Hierarchy    <tbd>, creation, <tbd>
   SD04 – Pricing Condition Record    <tbd>, creation, 1 source structure
   LE01 – Transportation Zone    Custom program, creation, 1 source structure
   LE02 – Route    Custom program, creation, 1 source structure
   LE04 – Route Stage    Custom program, creation, 1 source structure
   PP01 – Work Center    Standard DI method, creation, 1 source structure
   PP05 – Planning Data    <tbd>, creation, <tbd>

High

   Object    Comments
   MM01 – Material    Standard DI method, creation+extension, 1 source structure
   MM03 – Vendor    Standard BI method, creation+extension, 1 source structure
   MM05 – Open Purchase Order    ALE method, creation, multiple source structures
   SD01 – Customer    Standard BI method, creation+extension, 1 source structure
   SD08 – Open Sales Order    ALE method, creation, multiple source structures
   SD07 – Rebate Agreement    <tbd>, creation, <tbd>
   LE03 – Shipping Costs    Custom program, creation, multiple source structures
   PP03 – Routing    ALE method, creation, 1 source structure
   PP04 – Recipe and Formula    <tbd>, creation, <tbd>
   PP06 – Open Production Order    <tbd>, creation, <tbd>
Footnotes