Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
In phase 1 C3 will already need to support all states. The phase 2 states can only be optional for C2, because (1) the schematron allows all these states to be sent and we are not creating a new document type id with new schematron rules. And (2) it makes little sense for C2 to implement only a subset of states. What benefit would that have, doing the same project twice?
That is different for C1/C4. C1 can choose whether or not to advertise the Invoice Response document and C4 can then either send it or not. Advertising Invoice Response for C1 is optional. We are (October 2021) years away from being able to force all senders to process Invoice Response documents. But if C1 chooses to advertise, they must consume all states.
So I propose we eliminate the phasing. The project with Gerard Bottemanne already showed this is possible.