This will save you a lot of trouble and reduce the chance of mistakes!

Within the customer relationship management system Neoforce offers the option to register your most important data, your relations & customers, in the module basic registrations. The entire relationship management package uses these entered data to link everything together. This automatically creates a complete overview. You can then always easily see where something is linked to.

How many tickets has person X from organization Y created and what were they about? You can see this insightfully by opening the relevant person in the relationship management.
What was all discussed with client Z? Open the customer and you can see it at a glance! Within relationship management you have an efficient overview and you can very easily see per customer or person what has happened or been discussed.