Adding data series.

[7robert]

Hi, I have a problem adding a data series in real time two (2) days before the expiration date of a contract.
I constantly need to be evaluating a certain condition and when it is possible to read the data series at that time.

Maybe with an example I can explain myself better.
I need to evaluate how many days are left before a contract expires, when there are only 2 days left, I would like to start reading the data series of the following contract. But I could not achieve, any recommendations?.

[NinjaTrader_ChrisL]

Hello 7robert, thanks for your post.

To change a running strategies instrument contract month, the instruments must first be rolled over via Tools>Database management, then disable the strategy> add the new contract > re-enable the strategy.