Answer Posted / srinivasaai

In call trnc we have syntax like
call transaction 'vA01' using <bdcdata>
mode<A/N/E>
update<A/S>
MESSAGES INTO <INTTABLE>

A: ALL SCREEN MODE
N: NO SCREEN MODE
E: ERROR MODE

A:AYNCHORONOUS MODE
S:SYNCHORNOUS MODE

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