Limit distribution key period

What causes this issue?

You can define a distribution key for a maximum of 999 periods.
With calendar months, you can thus define the distribution key over a
period of 83 years, with calendar weeks, over a period of 19 years.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Check whether you have entered an incorrect period value. If the period
of the distribution sequence is exhausted, and you want to enter other
factors for the following year, delete the values of the first year in
the distribution sequence (i.e. enter factor 0) and select <ZH>Edit /
Suppress zero factors</>.

Error message extract from SAP system. Copyright SAP SE.