No response in sysnchronous proxy interface,not delivering
I have a synchronous contract interface with http to proxy scenario. In few cases like when contract has max line items, it is not delivering to target system and message in RWB Integration engine it is showing status as to be delivered delivered., also showing in XI sxmb_moni entry as log version and no response. When messages with few line items its working fine without any issue and getting response back as well. Also , i have same issue in http to rfc scenario.
Can you please help me to fix this issue, how to make these pending messages in XI to deliver to tartget system and get response back.
Thanks in advance.