Customer contribution field update

All,

One of our customer record ( Project Customers - screen) has incorrect information in contribution field. Is there any possibility to change the contribution information with out having to use the direct database update method by going in to Tolls->Examine? We are not considering direct update as we dont know what other issues may arise in future.

Note: Project already has transaction therefore we cannot reallocate to new projects.

Any suggestion is much appreciated.

Thanks,

Vids