End dating and then enabling subscriptions

Hi,

We are moving from Vertex Content to Sabrix cloud. As part of the setup process in eBTax, we would be end dating the OU subscriptions for Vertex and enable the subscriptions to Sabrix Tax Regime.

When we end date subscriptions, the date field gets greyed out and is not updateable.

As a rollback plan, we wanted to explore removing the end date for Vertex using an update script.

Is this an option or are there other alternates available.

Thanks!