Social media channels become more and more important for serviceproviders in contacting customers. Given the variety of offers it is important tounderstand the contribution of social media channels to knowledge exchangewith customers. We analyse the requirements of customer contact in service provisionand develop a framework how different social media channels can be usedfor knowledge exchange. In particular, we show from the perspective of serviceproviders how these organisations may apply different social media channels indifferent stages of service processes.