Error message coming in BAPI_MATERIAL_SAVEDATA

This the bapi i am using but getting error message like 'Key fields for user data PLANTDATA and checkbox structure PLANTDATAX are different'.Please suggest the solution.

• Material number

wa_mathead-material = <l_fs_cus_tab>-matnr.

APPEND wa_mathead TO it_mathead.

• Populating the plant specific internal table

wa_marc-plant = wa_mat_uoi-werks.

wa_marcx-plant = c_x.

wa_marc-spproctype = l_v_sobsl.

wa_marcx-spproctype = c_x.

APPEND wa_marc TO it_marc.

APPEND wa_marcx TO it_marcx.

• populating the internal table of unit of measures

wa_marm-alt_unit = l_v_altunit.

wa_marmx-alt_unit = c_x.

wa_marm-alt_unit_iso = l_v_altunit.

wa_marmx-alt_unit_iso = c_x.

wa_marm-numerator = wa_alt_unit-umrez.

wa_marmx-numerator = c_x.

wa_marm-denominatr = wa_alt_unit-umren.

wa_marmx-denominatr = c_x.

APPEND wa_marm TO it_marm.

APPEND wa_marmx TO it_marmx.

CALL FUNCTION 'BAPI_MATERIAL_SAVEDATA'

EXPORTING

headdata = wa_mathead

• CLIENTDATA =

• CLIENTDATAX =

plantdata = wa_marc

plantdatax = wa_marcx

• FORECASTPARAMETERS =

• FORECASTPARAMETERSX =

• PLANNINGDATA =

• PLANNINGDATAX =

• STORAGELOCATIONDATA =

• STORAGELOCATIONDATAX =

• VALUATIONDATA =

• VALUATIONDATAX =

• WAREHOUSENUMBERDATA =

• WAREHOUSENUMBERDATAX =

• SALESDATA =

• SALESDATAX =

• STORAGETYPEDATA =

• STORAGETYPEDATAX =

• FLAG_ONLINE = ' '

• FLAG_CAD_CALL = ' '

• NO_DEQUEUE = ' '

IMPORTING

return = wa_return

TABLES

• MATERIALDESCRIPTION =

unitsofmeasure = it_marm

unitsofmeasurex = it_marmx

• INTERNATIONALARTNOS =

• MATERIALLONGTEXT =

• TAXCLASSIFICATIONS =

returnmessages = it_return_mess

• PRTDATA =

• PRTDATAX =

• EXTENSIONIN =

• EXTENSIONINX =

.

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