I have already prepared a proposal according to the ERC guidelines. What are the biggest differences to the SNSF requirements?

​The ERC requires a global budget that must be presented in the research plan in
the form of a table. The SNSF requires the submission of a detailed budget with yearly  allotments in a dedicated data container in mySNF. Please refer to the call document for more information. Please note that the application should only be submitted when all data and document containers have  been completed. Once submitted, the application can not be modified anymore.