Generally, you should ask for leave in advance, whether it is leave or absence for no reason, it must be signed and recorded by the branch secretary, which will also serve as a reference in the subsequent development assessment process. The development of party member is very strict and complicated. The number of absences from training courses for activists joining the Party is one of the factors we consider, but it does not represent all the indicators of the evaluation system.
However, if you often ask for leave during the training of activists who join the Party, often miss your usual study activities for no reason, do not actively participate in social services, and are not actively in contact with your classmates, the branch will think that the activist has a wrong attitude during the assessment and will probably postpone the inspection.