Interactions between two applications encapsulated into Web services consist in series of message exchanges that must conform to service interfaces. The study reported in this text aims at dealing with the issues that arise when interactions between two services (a client and a provider) fail because their interfaces are incompatible. This may happen because the provider has evolved and its interface has been modified. It may also happen because the client decided to change for another provider which addresses the same needs but offers a different interface. The contribution of the proposed approach is twofold. First, given two services, all incompatibilities that may exist between their interfaces are automatically detected and classified into patterns. Second, according to the patterns that have been recognised, an adapter is then automatically generated. This latter is intended to act as an intermediate between the client and the provider, therefore seamlessly reconciling interactions between them.