You can now use the Jobs module online signing tool to ask clients to sign contracts or accept your Terms and Conditions. We’ve made it possible to hide the PO box and change the acceptance text.
In addition, you can now force your client to put in their PO number before accepting or confirming a job using the same screen (with different settings):
The tickbox acceptance text can be changed as well. Setting the text and whether to ask for a PO can be done in the Cog -> Job Settings -> Client Section: