How can we improve WHMCS?

Adding a "Pre-Save" function that ensures any information an admin is updating is not "out of date" or has already been updated by a client or another admin. In certain scenarios, if a client and administrator interact with a Product/Service at the same time this may result in values such as the Next Due Date of a service being reverted.

By providing a pre-save check to ensure values that affect billing have not already been updated. This would prevent incorrect suspension or termination from occurring.