Purpose
This report can be used to check the expiry dates of the sub-contractorscertificates for the Chain Liability functionality, and to update thevalidity of the certificates.

Output
The report generates a list of the sub-contractors with the relativecertificates and their expiry dates.
If you need to update the certificates, you have to select the relevantsub-contractor, and a new screen with the sub-contractor's master datawill be displayed: here you can enter the new validity dates.