Final answer:
The condition when managers have goals but lack complete information about alternatives and future events is known as uncertainty. It involves imperfect information and often leads to informational social influence.
Step-by-step explanation:
When managers know which goals they wish to achieve, but information about alternatives and future events is incomplete, the condition of uncertainty exists. This concept relates to situations of imperfect information, where neither the buyer nor the seller has complete certainty about what they are engaging with. This level of uncertainty can lead to a reliance on informational social influence, especially when the answer to a problem is unclear and if the group involved has relevant expertise.