Hello Akshaya,
if you use the transcation WE82 - Assign Messages for IDoc Type you find the following entries:
Message Type Basic type
/SAPSLL/MATMAS_SLL MATMAS01 30A
/SAPSLL/MATMAS_SLL MATMAS02 30D
/SAPSLL/MATMAS_SLL MATMAS03 40A
/SAPSLL/MATMAS_SLL MATMAS04 46C
/SAPSLL/MATMAS_SLL MATMAS05 470
/SAPSLL/MATMAS_SLL MATMASDI 46C
and with the Transaction WE30 - IDoc Type Development you can examine the Basic type.
But the standard procedure does not used this Idocs. The FM /SAPSLL/API_6850_SYNCH_MASS
transfers the material master data form ECC to GTS and us standard api6850 structures.
So, what do you want to do?
Regards,
Thomas