A third-party provider may integrate services with a customized enterprise-software tenancy via a tenant service context determined using an uncustomized data model and a tenant-customized data model from the enterprise-software provider. A difference map is generated for the tenant-customized data model with respect to the uncustomized data model, and is used to determine a mapped integrated-service data model, which facilitates integrating services with those of the enterprise-software provider. The mapped integrated-service data model is merged with the tenant-customized data model to obtain the tenant service context for the tenant. When a user provides an instruction to interact with the multi-tenant enterprise-software provider, the tenant service context is used to determine an action based on an interpretation of the instruction, and the enterprise-software provider is commanded to perform the action.