How to fix AX 2009 AIF Service Operation error "there is no schema associated with the specified class."
We usually get this error message when we do a data refresh from PROD to TEST / QA or DEV environments. The Schema document for AIF Service Operations stored in a table called "AifSchemaStore" and the reference data stored in "AifDocumentSchemaTable". 1. AifDocumentSchemaTable : - https://msdn.microsoft.com/en-us/library/aifdocumentschematable.aspx 2. AifSchemaStore : - https://msdn.microsoft.com/en-us/library/aifschemastore.aspx So when we do a data refresh I think sometimes the refRecid's wont synch (Which is happened in my environment). Fix : So I found the record in AifDocumentSchemaTable using the AIF ClassId and deleted that record, then I re generated the service (Basic >> Setup >> AIF >> Service >> Click on Generate. It recreated the new schema and stored in the AifSchemaStore and linked to AifDocumentSchemaTable record. Then everything worked fine. Note : This will also adds the service in Configuration screen t...