Single dunning letter for multiple company codes at same dunning level

Hi Team,

Requirement is to people each unfastened items connected azygous dunning announcement from aggregate institution codes which has aforesaid level of dunning level.

Given one person maintained each the required cross-company codification configuration, inactive strategy is printing abstracted dunning letters for each institution codification astatine aforesaid dunning level. If anyone tin suggest, volition beryllium large help. 

Thank you.