I would try XPI Inspector. Activate it with template 50 on PI 7.5 and PI 7.1 as well (you may need to deploy it first, as it doesn't come with the standard AFAIK). You can (and should) narrow that down to the respective communication channels.
Please come back if you have any additional questions regarding this
Cheers
Hi Vinoth,
This is strange that the receiver channel from PO 7.5 delivered the message but it is not available/logged in 7.1 sender channel. Is your both system are part of same landscape? Do you use any load balancer or web dispatcher in 7.1?
regards,
Harish
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