Interfaces between ECC and EWM

HI Gurus,

Good day to you.

Need your valuable advice on the scenario below.

We have been using IM for ages. We are implementing EWM for the first time. Below are the concerns

1. all this while we are using Mvt type 103 and 105 for GR purpose including for return 104, 106 and 124.

2. it is well sync with SRM module

After EWM

1. instead of 103 we will replacing VL31N for INB to sent the data to EWM

2. return will be in EWM

3. PGR will be through 101.

Concern

1. any chances for us to use 103 to create the same data as VL31N to flow to EWM

Thanks