Even though the Table is updating, am not getting an entry in CDHDR table?

Question

Hi Experts,
Am updating the MVKE-VMSTA filed from 33 to 34 by using a FM - ASSORTMENT_MVKE_CORR.
When, I see the MVKE tbl, its updating correctly - was chaged from 33 to 34.
But, I did NOT find any change entry in CDHDR or CDPOS tables on for this change.
Let me know that, Why there is NO entry in CDHDR / CDPOS tbls? Iguess, definately, the CHANGE/history settings were set/switched on for this(MVKE) tabale.
thanq

Answer 1

We can create our own change documents by following a procedure. There are many more threads available. See below for your quick reference..
The change documents gets updated by the FMs which are created /generated when the change doc objects are generated in SCDO. the change doc objects provided by sap are already generated. the fms will have names something like this
<Change document object>_WRITE_DOCUMENT
The object-specific update function module calls the following function modules with object-specific parameters:
a. CHANGEDOCUMENT_OPEN
b. CHANGEDOCUMENT_SINGLE_CASE and/or
c. CHANGEDOCUMENT_MULTIPLE_CASE and possibly
d. CHANGEDOCUMENT_TEXT_CASE
e. CHANGEDOCUMENT_CLOSE
For PO, the Change documnet object is EINKBELEG and the update FM Is EINKBELEG_WRITE_DOCUMENT
Business data objects are changed frequently. We recommend that you log these changes for objects that are critical or susceptible to audits. You may find it helpful, and sometimes necessary, to be able to trace or reconstruct such changes later, for example for investigating or auditing purposes. SAP Systems log changes to business data objects in change documents.
SAP Systems do not automatically use change documents for business objects. You must activate the process yourself.
To activate a change document for an object, perform the following steps:
1. Create the change document. (Use the transaction SCD0.)
2. Activate the change document for the object. (Use data element maintenance: transaction SE11.)
3. Generate an update for the object. (Use the transaction SCD0.)
4. Insert the appropriate calls in the corresponding programs.
To view change documents for an object, also use the transaction SCD0.
For more information on change documents, check the below link.
The change documents gets updated by the FMs which are created /generated when the change doc objects are generated in SCDO. the change doc objects provided by sap are already generated. the fms will have names something like this
<Change document object>_WRITE_DOCUMENT
The object-specific update function module calls the following function modules with object-specific parameters:
a. CHANGEDOCUMENT_OPEN
b. CHANGEDOCUMENT_SINGLE_CASE and/or
c. CHANGEDOCUMENT_MULTIPLE_CASE and possibly
d. CHANGEDOCUMENT_TEXT_CASE
e. CHANGEDOCUMENT_CLOSE
For PO, the Change documnet object is EINKBELEG and the update FM Is EINKBELEG_WRITE_DOCUMENT
Business data objects are changed frequently. We recommend that you log these changes for objects that are critical or susceptible to audits. You may find it helpful, and sometimes necessary, to be able to trace or reconstruct such changes later, for example for investigating or auditing purposes. SAP Systems log changes to business data objects in change documents.
SAP Systems do not automatically use change documents for business objects. You must activate the process yourself.
To activate a change document for an object, perform the following steps:
1. Create the change document. (Use the transaction SCD0.)
2. Activate the change document for the object. (Use data element maintenance: transaction SE11.)
3. Generate an update for the object. (Use the transaction SCD0.)
4. Insert the appropriate calls in the corresponding programs.
To view change documents for an object, also use the transaction SCD0.
For more information on change documents, check the below link.
http://help.sap.com/saphelp_nw2004s/helpdata/en/2a/fa015b493111d182b70000e829fbfe/content.htm
Reward if find useful