The lead partner principle applies to projects in the small project fund, ie one of the project partners has his hat on and takes care of all communication with the funding agencies. Only the lead partner can claim their costs in the statement, not the project partner. Invoicing between the project partners is not permitted.
If both partners incur costs in a joint project that should be billed for funding, two so-called mirror projects must be applied for. This means two separate project applications that are completely identical in terms of the description of the project, but contain two different cost plans. Each partner calculates their own costs separately. In this way, double the funding amount can be achieved.
It makes sense to give both mirror projects the same title so that the connection between the project secretariats and the decision-makers about funding is easily recognizable.