Delta Update for Characteristic info object

Question

Hi
Can anyone tell me how can i adjust a delta update for a characteristic?
Regards
S

Answer 1

Hi Sancho,
A great deal of InfoObjects carrying master data and texts are already delivered delta-capable (e.g.  0MATERIAL_ATTR, 0CUSTOMER_ATTR).
The master data extraction in the delta mode is possible for a large number of R/3 tables and views. To do this, the transaction for which data is to be created and changed must be linked to the change document update. This service has been implemented for most of the master data in the R/3 System.
The update occurs in most cases for the transparent tables in which R/3 master data is stored (for example, for MARA or KNA1). If a field changes in a data record of the table the key to this record is recorded in a delta table. When reading the table in a BW, this key is used to fill the extract structure. Thus, you can extract master data delta in several ways:
The extract structure equals the transparent table in the database, whose maintenance is added to the change documents.
The extract structure is a view over one or more transparent tables whose maintenance is added to the change documents, for example, a view via KNA1 (customer) and KNB1 (customer and company code).
A basic requirement for the usability of a table for an InfoObject is that the key for this table explicitly specifies a record of the extract structure (key word compounding). Besides, you should make sure that the data elements of all the extract structure fields are relevant to the change document in the respective table. In other words: as soon as a field changes a record which is part of the extract structure, it must be updated in the delta pot.
<b>According to the assignment InfoObject/table, the following steps must be executed:</b>
1. Check, whether the ALE changepointer are active in your source system (Transaction BD61) and whether the number range is maintained (Transaction BDCP).
2. In addition, check in the ALE Customizing, whether all message types you need are active (Transaction SALE -> Model and implement business processes -> Configure the distribution of master data -> Set the replication of changed data -> Activate the change pointer for each message type ).
3. Check, whether the number range for the message type BI_MSTYPE is maintained (Transaction SNUM -> Entry 'BI_MSTYPE' -> Number range -> Intervals). The entry for 'No.' must be exactly '01'. In addition, the interval must start with 0000000001, and the upper limit must be set to 0000009999.
4. Go to your BW system and restart the Admin. workbench.
All of the following activities occur in the InfoSource tree of the Admin. Workbench.
5. Carry out the function "Replicate DataSource" (1.2 local meta data upload) on the affected attached source system for the InfoObject carrying the master data and texts.
6. Activate the delta update
a) for master data and textsby activating the transfer rules.
b) for texts the entry is in the menu of the right mouse button via the source system: Activate the text delta transmission.
All changes, all initial data creations and deletions of records from now on are recorded in the source system.
7. Create an InfoPackage for the source system. In the tabstrip 'update parameter', there are three alternative extraction modes:
Full update
Delta update
Initialization of delta procedure
              First, initialize the delta procedure and then carry out the
              delta update.
Addition for incorrect delta requests:
After an incorrect delta request, you often have to re-initialize. A possibility of avoiding this consists in setting the incorrect request manual via QM activity to green. If the request was processed successfully in the source system, and was finished with the information IDoc 'Data selection ended', but the BW reports a processing error, the request must be re-initialized in any case in order to avoid data inconsistencies.
Constraints
The total length of the key fields in the table or view for which change pointers are produced must not exceed 70 characters.
Transferring deleted records using the ALE delta is impossible since a corresponding indicator is missing in the extracted record.
Hope this helps.
Thanks
CK