What you need to do is a bit of analysis. You will have to compare your customer executable schema and all sub-schemas that were copied from standard schemas and customized, to the SAP Standard schemas for your country.
Please look inside the code of report RPDASC00. At the top you will see the tables where customer schemas and SAP standard schemas are stored.
SAP Standard schemas are stored in table T52C0. Customer schemas are in T52C1.
Please note that if a SAP Standard schema is modified my the customer, then a copy of the same schema with the same name is stored in table T52C1.
You will also have to analyze SAP standard rules that might have been changed. If those standard rules were copied into customer rules and modified, and if a change was released by SAP in those rules in the new release then you have to apply that to the customer rule.
The analysis of the schemas and rules is a very important step of the upgrade to a new SAP version.
Compare your schemas, rules and apply all changes that are neccessary.
Nicoleta
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