The BAdI /AEB/TA_MAT_SYNC_01 is called every time a material is received from the Product Classification Engine, which is every time the material is changed.
This BAdI supports the raising of an exception as it is described under https://sap-plugins.docs.developers.aeb.com/docs/exceptions. When the exception is raised, then the complete handling (also the standard handling) of the material is considered as failed, which means there will be an entry created in the function call monitor which can be automatically repeated with the report /AEB/01_FCC_RETRY if the customizing is done. When this repeat happens (either automatically by the report or manually by a user in the function call monitor) then the whole material is transferred from the Product Classification engine and processed and also this BAdI will be called again.
Updated about 2 years ago