Error in Sales Quote Creation when I change Document type SAP C4C

[ECW]

Hi,

In my project we have two different Sales Quotes Document types, the standard Sales Quote document type and the ZCPQ document type wich is used to made CPQ sales quotes.

We create Sales Quotes from Opportunities, the problem is when I created an standar Sales Quote and then I try to create a CPQ Sales quote, I change the Document type, when I click Save and Open the error in image appears ("Requires to be saved consistently":

In this point, the only way to create a CPQ Sales Quote is going to Sales Quotes Work Center and copy an existing one, then I can create CPQ Sales Quotes from Opportunities. Obviously this is not a valid solution.

Any ideas?

Thank you!

Eduard