I think not Denise, because of the SAAS. Odoo is offering the SAAS system (Software As A Service) because they can host many customers on the same box/software. That means that all software is the same for all customers. So if you want to have some customizations (software changes) then proberly the SAAS solution is not suitable for you. You proberly want to use your own server with or without support from Odoo.

Thx for your response Martin :) However by customization I do not mean software changes which I would consider "coding" or "development" but changing settings in the existing configuration, e.g. in a workflow which I feel need to be tested first before being used in a production environment. So what I mean is a sandbox feature similar to what salesforce is offering https://help.salesforce.com/HTViewHelpDoc?id=data_sandbox_create.htm&language=en_US [1] However if that is not offered (yet) preinstalled VPS might be a better option indeed. [1] https://help.salesforce.com/HTViewHelpDoc?id=data_sandbox_create.htm&language=en_US