Your funding agency
Each funding agency announces their
- scope of work and
- eligibility critieria.
These elements should be considered carefully. Any violation will automatically lead to proposal discarding without giving even giving it a change for evaluation because such proposals are considered a waste of time and effort to these agencies.
The advice here is to make sure that your proposal lies within the declared priorities and that yourself as well as the country you are represent are eligible for applying and hence for funding.