Updation of material data using a function module

Question

HI
  i want to update fields in the mvke table,but the field is a Customer field in the table, not sap table field.i want to update the field using a program , not going to mm02. which function can i use for the updation.There is a function module MATERIAL_MAINTAIN_DARK for updation,will this funtion module update the customer fields also. Can anyone tell me about this function module and how to use this function module or MATERIAL_MAINTAIN_DARK.

Answer 1

Using the function Module BAPI_MATERIAL_SAVEDATA , you can also update the custom fields.
This is the documentation for the extension fields:
<b>Reference Structure for BAPI Parameters EXTENSIONIN/EXTENSIO
Description
    You use this structure to transfer the material's customer-defined
    fields. For information on transferring these fields, see the function
    module documentation.
Note
    Besides the table fields already defined, customer-defined table fields
    can also be supplied with data. Since these fields are created by the
    customer, they are known only during the runtime and must therefore be
    determined dynamically.
    The structures BAPI_TE_<NAME> (<NAME> = MARA, MARC, MARD, MBEW, MLGN,
    MLGT, MVKE) and the relevant checkbox structures BAPI_TE_<NAME> (<NAME>
    = MARAX, etc.) must first be extended by the customer to include the
    fields required. The standard structures contain only the corresponding
    key fields. When including new fields in these structures, make sure
    that the field has the same name as the field in the database table. In
    addition, the fields in the structures BAPI_TE_<NAME> may only be of the
    type CHARACTER. The data element BAPIUPDATE must be used for the fields
    in the checkbox structure (except for key fields).
    The two parameters EXTENSIONIN and EXTENSIONINX are used to transfer the
    data to the method. The field STRUCTURE contains the name of the
    structure (for example, BAPI_TE_MARA or BAPI_TE_MARAX) used to identify
    the work area (for example, WA_BAPI_TE_MARA or WA_BAPI_TE_MARAX) to
    which the data is transferred. The remaining fields for the parameter
    EXTENSIONIN or EXTENSIONINX contain the data for the key fields (for
    example, the material number) and the data for the customer-defined
    fields. The number of characters reserved in the two parameters for the
    content of a customer-defined field must be the same as the number of
    characters for the corresponding work area field. If the number of
characters required is smaller, the remaining characters in the two
parameters must be filled with blanks. Only then may the content of
another field be transferred. Here too, remember that the data is
written to the database only if the corresponding indicator has been set
in the work area.</b>
Regards,
ravi