Missing tracking information identifiers #3

Issue

For documents coming into our recommand account following fields peppolMessageId ,peppolConversationId, receivedPeppolSignalMessage seem to be null. As announced in changelog here.

Replicate issue

Recommand document id: doc_01KCKSSC6MBQ6NT0VCW2FEK00G

Why useful

• Would like to use it for unique document checks, have been receiving the same invoice from a supplier multiple times.
• For tracebility reasons would like to save those id's into our databases