An agent receives a call from a customer who has contacted the company three times in the past week via email and web chat about the same unresolved issue. Within a well-integrated CRM system, what feature is most critical for providing the agent with the necessary context to handle this interaction effectively?
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A
A real-time analytics dashboard showing current call volume.
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B
A unified customer interaction history across all channels.
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C
A script for handling first-time callers.
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D
An internal chat tool to communicate with colleagues.