Cant get enough tokens from transfer

[WeiyuSun]

/transfers/${transfer_id}/accept
/transfers/${tansfer_id}/fullfill
when the user tries to accept specific tokens in a transfer. If the selected tokens are missing for some unknown reason. The transfer can still be accepted. But missing tokens cannot be transferred, which means the target wallet cannot get enough tokens from this transfer. This also happened in the fulfill specific tokens request.

How to solve?
Check the number of pending tokens for this transfer before finishing this transfer. If the token amount is smaller than the transfer required, return an appropriate message and state code for user.

[WeiyuSun]

I can take this. Can you assign it to me?