No Communication Idoc generating for a particular account group

Hi Team,

I'm facing an issue that, when I send a customer of particular account group to other systems, no communication Idocs are generating. When I send another customer of other account group it's generating successfully.

Kindly let me know how to configure the Idoc for solving the issue.

Experts... Kindly help !!

Thanks !

Regards,

Akhil