Before, generating the 13th Month Payment only uses a fixed yearly date. There was no option to select which months you can include in generating the 13th Month Computations.
We have now added the option to select specific dates on which payrolls you would like to include on the 13th Month Payment Generation.
Note: This is on beta release, if you would like to try this out, please contact firstname.lastname@example.org to enable this feature for you. We will be releasing this feature to all PayrollHero accounts by end of October 2020.