When to use ECOS?
ECOS is mandatory for procurement actions of 10 Meuro and above. This includes sub-contractors even if their own share does not reach 10 Meuro.
ECOS can be used for all your financial proposals. Using it frequently will make you a confident user and its many powerful advanced features will allow you to assemble your financial proposals faster and more reliably than when using interlinked spreadsheets.
More details on regulatory aspects may be found in the General Conditions of Tender for ESA Projects, which can be found on EMITS.