How many follow-ups are acceptable before moving on?

[Btaliat]

It is not a bad thing doing following up but it must be done with caution. You need to make sure that you are doing it adding values to yourself. For instance, you should not appear desperate while doing it. That's why it is always better to do it for like twice or at most 5 times. The first time is just to remind the clients. If you are consistent and they are not yielding, you can stop.