Error while putting service activity

Hi experts,

On puting service activity in a network, system has given following message 'Error in committment check (See costing log)'. Cost log says 'Planning level M1 does not exist' please correct your entry or maintain the planning level.

I'm sure this is not in connection with the budget availability control because the control is not active.

What could have gone wrong?

Has anyone got some idea?

Thanks,

Mohan Parab